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Electric motor | Magnetic effects of current | Khan Academy

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Electric motor | Magnetic effects of current | Khan Academy

Let's learn the working of an electric motor.
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Khan Academy is a nonprofit organisation with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organisation, we would love your help!

Created by Mahesh Shenoy
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Electric Motor

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How does an Electric Motor work? How is an Electric Motor made? We will look into the details of the D.C. motor in this video. Force on a current carrying conductor in a magnetic field is discussed. Fleming's Left Hand Rule is used to find the direction of the force.

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Electric motors (part 1) | Physics | Khan Academy

Sal shows that there will be a net torque on a loop of current in a wire. Sal shows that this net torque will cause the loop to rotate. Created by Sal Khan.

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Physics on Khan Academy: Physics is the study of the basic principles that govern the physical world around us. We'll start by looking at motion itself. Then, we'll learn about forces, momentum, energy, and other concepts in lots of different physical situations. To get the most out of physics, you'll need a solid understanding of algebra and a basic understanding of trigonometry.

About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.

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Electric generator (A.C. & D.C.) | Magnetic effects of current | Khan Academy

Let's learn how A.C. and D.C. generators (electric generators) work.
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Khan Academy is a nonprofit organisation with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organisation, we would love your help!

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Electric motor (Hindi) | Magnetic effect of electric current | Physics | Khan Academy

Let's learn the working of an electric motor, which converts electricity into a rotation.
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Class 10 Physics on Khan Academy: Let's explore the mysteries of light and electricity. From how light reflects, to correcting defects in our eyes. From understanding charges, to lighting up cities. From Newton's prism to Faraday's generator, it's all there.
So by taking this course, we will master the topics of (but not limited to) class 10th NCERT physics.

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Magnetic Effect of Electric Current

Magnetic Effect of Electric Current: Let's learn about the Magnetic Effect of Electric Current! We will look at the Magnetic Fields due to a Current Carrying Conductor of different shapes: Straight wire, Circular loop and Solenoid.

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Working Principle of DC Motor (animation of elementary model)

Working Principle of DC Motor - Video gives an brief explanation in form of animation how does DC Motor works. Also you can view working principle on elementary model with poles, commutators, brushes, turns and what role in working principles has mechanical force.

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PRINCIPLE OF DC MOTOR
This DC or direct current motor works on the principal, when a current carrying conductor is placed in a magnetic field, it experiences a torque and has a tendency to move.
This is known as motoring action. If the direction of current in the wire is reversed, the direction of rotation also reverses. When magnetic field and electric field interact they produce a mechanical force, and based on that the working principle of DC motor is established.

The direction of rotation of a this motor is given by Fleming’s left hand rule, which states that if the index finger, middle finger and thumb of your left hand are extended mutually perpendicular to each other and if the index finger represents the direction of magnetic field, middle finger indicates the direction of current, then the thumb represents the direction in which force is experienced by the shaft of the DC motor.
Structurally and construction wise a direct current motor is exactly similar to a DC generator, but electrically it is just the opposite. Here we unlike a generator we supply electrical energy to the input port and derive mechanical energy from the output port

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Magnetic field created by a current carrying wire | Physics | Khan Academy

See how a wire carrying a current creates a magnetic field. Created by Sal Khan.

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Physics on Khan Academy: Physics is the study of the basic principles that govern the physical world around us. We'll start by looking at motion itself. Then, we'll learn about forces, momentum, energy, and other concepts in lots of different physical situations. To get the most out of physics, you'll need a solid understanding of algebra and a basic understanding of trigonometry.

About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.

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Working of Electric Motor | Electricity | Physics | Class 10

The electric motor is a phenomenal example of how Fleming’s Left-hand rule works, Electrical energy is converted into mechanical energy by using an electric motor. In an electric motor, a rectangular coil is suspended between the two poles- North and south of a magnetic field. The electric supply to the coil is connected to a commutator- a device which reverses the direction of flow of electric current through a circuit.

When an electric current is supplied to the coil of the electric motor, it gets deflected because of the magnetic field. As it reaches the halfway, the split ring which acts as commutator reverses the direction of flow of electric current. When the direction of current reverses the direction of forces acting on the coil also gets reversed. Thus here the change in direction of force pushes the coil, and it moves another half turn. Finally, the coil completes its one rotation around the axle. Continuation of this process keeps the motor in rotation motion.

#electricmotor #electricity #physics

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Electric generator (A.C. & D.C.) (Hindi) | Magnetic effects of current | Physics | Khan Academy

Using simple animation let's learn how A.C. and D.C. generators (electric generators) work.
Missed the previous topic?

Class 10 Physics on Khan Academy: Let's explore the mysteries of light and electricity. From how light reflects, to correcting defects in our eyes. From understanding charges, to lighting up cities. From Newton's prism to Faraday's generator, it's all there.
So by taking this course, we will master the topics of (but not limited to) class 10th NCERT physics.

About Khan Academy: Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help!
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Electric Power

Electric Power : What is Electric Power? Formulas of electric power, electrical energy, power rating and the unit watt are discussed. We compare power of different bulbs: incandescent, CFL and LED bulbs.

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Magnetism: Motors and Generators

Principles and applications of motors and generators, using 3d animations.

Electric Motor (Part 1) - Magnetic Effects of Electric Current | Class 10 Physics

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CBSE X : Magnetic Effects in Electric Current Revision in 1 Shot | Class 10 Physics | NCERT Physics

Magnetic Effects in Electric Current Revision in 1 Shot by Abhishek Sir. Learn the Magnetic Effects in Electric Current class 10 Physics are explained in detail in this video. Learn Magnetic Effects in Electric Current Topics Like Current, Magnetic Field, Magnetic Force, Magnetic Field Lines, Solenoid, Right-hand Thumb Rule, Fleming's Left-hand Rule, Fleming's Right-hand Rule, Electric Motor, Electric Generator, Ac Generator, Dc Generator, Domestic Circuits, Mains, Fuse, Live, Neutral, Earthing, Overloading, Short Circuit, Magnetic Force, Lorentz Force, Commutator, Slip Ring, Armature, Carbon Brushes, Split Rings, Faraday's Law, Electromagnetic Induction,

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Electric Motor and Commercial Motor | CBSE Class 10 X Science

Electric Motor and Commercial Motor | CBSE Class 10 X Science

Hello students, here in this video we are going to study the topic as, Electric motor and commercial motor from class 10 science.

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Electric Motor :

Electric Motor is a device that converts electrical energy into mechanical energy. As current flows in the coil placed in the magnetic field then the force is produced that rotates the coil.
Construction :
1. Magnet is required to create a magnetic field.
2. There is a coil ABCD. It is in a loop.
3. Split rings are attached to the rectangular loop. They are also called commutator. The commutator is a device that reverses the direction of flow of electric current through a circuit.
4. Brushes touch the split ring.
5. The battery is connected across the brushes.

Working :
1. Due to the battery, current flows in the loop placed in the magnetic field.
2. The magnetic field applies force on a loop so that it rotates. Thus, electrical energy is converted into magnetic energy.
3. But for loop to rotate continuously in one direction, the direction of the force on wires should keep changing after every half revolution.
4. This is achieved by split rings. They facilitate the change in direction of the current.
5. Reversal of direction of current reverses the direction of forces acting on the coil. The change in direction of force pushes the coil: and it moves another half turn.
6. This helps in a continuous rotation of the coil.

Commercial Motor :

To make the motor more powerful, we modify the construction. The motor so obtained is called commercial motor.
It can be done in these ways:
1. An increasing number of loops.
2. Loop can be wound around a soft iron core.
3. The electromagnet can be used to create a stronger magnetic field.

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CBSE board practice: Magnetic effects of current | Physics | Khan Academy

Let's practice recalling various topics of Magnetic effects.
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Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help!

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Created by Mahesh Shenoy

Diamagnetic anisotropy | Spectroscopy | Organic chemistry | Khan Academy

Explanation of diamagnetic anisotropy. How it affects chemical shift in proton NMR.Created by Jay.

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Organic Chemistry on Khan Academy: Carbon can form covalent bonds with itself and other elements to create a mind-boggling array of structures. In organic chemistry, we will learn about the reactions chemists use to synthesize crazy carbon based structures, as well as the analytical methods to characterize them. We will also think about how those reactions are occurring on a molecular level with reaction mechanisms. Simply put, organic chemistry is like building with molecular Legos. Let's make some beautiful organic molecules!

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Electric Motor - Class 10

Magnetic field due to a current in a solenoid | Effects of Electric Current | Class 10th | Science

A solenoid is a long coil of wire wrapped in many turns. When a current passes through it, it creates a nearly uniform magnetic field inside.


Key Areas of the session:

1. Magnetic Field Due to Current Carrying Solenoid
2. What is a Solenoid?
3. Magnetic field in a Solenoid
4. Questions based on Magnetic Pole
5. Magnetic effect of Electric Current
6. Direction of Magnetic Field Lines
7. Magnetic field due to a long solenoid
8. Solenod Definition
9. Physics Class 10 short tricks

Copyright Disclaimer Under Section 107 of the Copyright Act 1976, allowance is made for fair use for purposes such as criticism, comment, news reporting, teaching, scholarship, and research. Fair use is a use permitted by copyright statute that might otherwise be infringing. Non-profit, educational or personal use tips the balance in favor of fair use.

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Introduction to light | Electronic structure of atoms | Chemistry | Khan Academy

Light and the electromagnetic radiation spectrum. Wave and particle-like behavior, and how to calculate the wavelength or frequency of a light wave. Created by Sal Khan.

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Chemistry on Khan Academy: Did you know that everything is made out of chemicals? Chemistry is the study of matter: its composition, properties, and reactivity. This material roughly covers a first-year high school or college course, and a good understanding of algebra is helpful.

About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.

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