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moving coil galvanometer 12th class explanation construction and working animation hd

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moving coil galvanometer 12th class explanation construction and working animation hd

What is permanent magnet moving coil galvanometer?
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galvanometers is an electromechanical instrument, used for detecting and indicating an electric current. It is a sensitive electromagnetic device which can measure low currents, even of the order of a few microamperes. galvanometer works as an actuator, by producing a rotary deflection in response to electric current flowing through a coil in a constant magnetic field.
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Moving coil galvanometer working | Moving charges & magnetism | Physics | Khan Academy

A moving coil galvanometer works on the principle that a current-carrying coil placed in a magnetic field, experiences a torque. The coil springs along with the radial field ensure the deflection to be proportional to the strength of the current.

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MOVING COIL GALVANOMETER: Principle, Construction and Theory | Physics Video Tutorials

Moving coil galvanometer is a device used for measuring the
current in a circuit. The Principle of moving coil galvanometer is, that a current carrying coil placed in a magnetic field experiences a torque.

It consists of a rectangular coil of a large number of turns of thin
insulated copper wire wound over a light metallic frame. The
coil is suspended between the pole pieces of a horse-shoe magnet by a fine phosphor – bronze strip from a movable torsion head. The lower end of the coil is connected to a hair spring (HS) of phosphor bronze having only a few turns. The other end of the spring is connected to a binding screw. A soft iron cylinder is placed symmetrically inside the coil. The hemispherical magnetic poles produce a radial magnetic field in which the plane of the coil is parallel to the magnetic field in all its positions. A small plane mirror (m) attached to the suspension wire is used along with a lamp and scale arrangement to measure the deflection of the coil.

Let PQRS be a single turn of the coil. A current I flows through the coil. In a radial magnetic field, the plane of the coil is always parallel to the magnetic field. Hence the sides QR and SP are always parallel to the field. So, they do not experience any force. The sides PQ and RS are always perpendicular to the field.

PQ = RS = l, length of the coil and PS = QR = b, breadth of the coil
Force on PQ, F = BI (PQ) = BIl. According to Fleming’s left hand
rule, this force is normal to the plane of the coil and acts outwards.
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Moving Coil Galvanometer

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Moving Coil Galvanometer

Moving coil galvanometer is a very sensitive instrument used to measure the small currents of the order 10^-9 A. Here the galvanometer gives the deflection which is proportional to the electric current flowing through it.

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Moving Coil Galvanometer, Unit 3, Magnetic Effects of Current, Class 12th Physics

Class 12th Physics

GALVANOMETER

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A galvanometer is an electromechanical instrument for detecting and measuring electric current. The most common use of galvanometers was as analog measuring instruments, called ammeters, used to measure the direct current (flow of electric charge) through an electric circuit.

???? MOVING COIL GALVANOMETER || in HINDI

In this Physics video lecture in Hindi for class 12 we explained the construction and working principle of a moving coil galvanometer and die the derivation of current sensitivity and voltage sensitivity of a moving coil galvanometer. We also talked about the factors affecting the sensitivity of a galvanometer. A galvanometer is an electrical instrument which can detect a very small current. We know that a current carrying coil rotates in a magnetic field, because it experiences a torque. The moving coil galvanometer works on this principle. As it is attached with a spring, this spring applies a restoring torque when the coil rotates. When the magnitude of both the torques are the same, the coil experiences a rotational equilibrium. A needle is attached to the coil and hence it also deflects. The deflection (measured in radian) is the product of the number of turns in the coil, the current, the area of the coil and the magnitude of the magnetic field divided by the torsional rigidity of the spring. Torsional rigidity is torque per unit twist.
Proper calibration can give us the exact amount of current flowing through the coil of the galvanometer. The created magnetic field is a radial magnetic field.

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moving coil galvanometer 12th class explanation construction and working animation hd

working of moving coil galcanometer
construction and working of moving coil galvanometer animation
€ TOROID beautiful MAGNETIC FIELD animation and explanation


Explaining how moving coil galvanometer works .. And shows the presence of small amount of current' torque acting on a coil when current starts flowing in a coil !
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Physics CBSE Class 12: Moving Coil Galvanometer

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Moving Charges n Magnetism 16: Moving Coil Galvanometer - Radial Field, Current n Voltage Senstivity

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Moving Coil Galvanometer - Moving Charges and Magnetism | Class 12 Physics

Get Notes Here -

Class: 12th
Subject: Physics
Chapter: Moving Charges and Magnetism
Topic Name: Moving Coil Galvanometer (4.14)

Points covered in this video -
What is moving coil galvanometer?
What is the principal of moving coil galvanometer & its working?

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Moving coil galvanometer explanation using animation.

Class XII CBSE board NCERT
Unit 3 , chapter 4

Moving Coil Galvanometer I

Moving Coil Suspended Type Galvanometer

Moving Coil Suspended Type Galvanometer

A moving coil galvanometer consists of a strong horse - shoe magnet with concave shaped poles N and S . A rectangular coil of insulated copper wire wound on a non - conducting frame is suspended between the magnetic poles by means of a phosphor - bronze thread P from a torsion head T1 . A small mirror M is fitted to the thread a little above the coil . The phosphor - bronze has high Young's modulus and very low rigidity modulus . Hence , it can easily be twisted but cannot be elongated . The lower end of coil is connected to a binding spring T2 . A soft iron cylinder I is a placed inside the coil without any connection with the coil .

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Galvanometer Working

Galvanometer Working
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Lecture By: Mr. Pradeep Kshetrapal, Tutorials Point India Private Limited

Moving Coil Galvanometer - Introduction, Theory, Current Sensitivity, Voltage Sensitivity

In this video we have discussed one of the major of physics i.e Moving Coil Galvanometer and various topics under this topic has been covered in this video

1. Introduction
2. Theory
3. Current Sensitivity
4. Voltage Sensitivity
5. Condition For Sensitivity Of Galvanometer


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Moving Coil Galvanometer, Class 12 Physics # 76.

Explained about Moving Coil Galvanometer , It's principle , construction and working.
Chapter 4 Moving Charges And Magnetism .

Moving Coil Galvanometer II

Galvanometer Construction

Galvanometer Construction
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Lecture By: Mr. Pradeep Kshetrapal, Tutorials Point India Private Limited

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