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In magnet-coil experiment, if both the m...

In magnet-coil experiment, if both the magnet and coil are stationary, there is ____________ deflection in the galvanometer.

A

small

B

large

C

continuous

D

no

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The deflection in a moving coil galvanometer is

A coil is connected to a galvanometer. When the N-pole of a magnet is pushed into the coil, the galvanometer deflected to the right. What deflection, if any , is observed when: (a) the N-pole is removed ? (b) the S-pole is inserted ? (c) the magnet is at rest in the coil ? State three ways of increasing the deflection on the galvanometer.

Knowledge Check

  • The deflection in moving coil galvanometer is

    A
    directly proportional to the torsional constant
    B
    inversely proportional to the area of the coil
    C
    inversely proportional to the current
    D
    directly proportional to the number of turns in the coil

  • The deflection in moving coil galvanometer is

    A
    Directly proportional to the torsional constant
    B
    Directily proportional to the number of torsional coil
    C
    Inversty proportional to the area of coil
    D
    Inversely proportional to the current flowing

  • The observation made of Faraday from the experiments on electromagnetic induction is (are) that ________. (A) the deflection in the galvanometer increases when a strong magnet is used (B) the induced current in the coil is alternating in nature

    A
    Only A is true
    B
    Only B is true
    C
    Both A and B are true
    D
    Both A and B are false

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    A coil made of insulated copper wire is connected to a galvanometer. What will happen to the deflection of the galvanometer if this coil is moved towards a stationary bar magnet and then moved away from it? Give reason for your answer and name the phenomenon involved.

    A coil made of insulated copper wire is connected to a galvanometer. What will happen to the deflection of the galvanometer if this coil is moved towards a stationary bar magnet and then moved away from it? Give reason for your answer and name the phenomenon involved.

    A coil made of insulated copper wire is connected to a galvanometer. What will happen to the deflection of the galvanometer if a bar magnet is pushed into the coil and then pulled out of it? Give reason for your answer and name the phenomenon involved.

    The observations made by Faraday from the experiments on electromagnetic induction is (are) that_______. (A) the deflection in the galvanometer increases when a strong magnet is used. (B) the induced current in the coil is alternating in nature.

    In a moving coil galvanometer, there is a coil of copper having number of insulated turns N, each of area A. The coil is suspended in a radial magnetic field B. The moment of inertia of the coil about its rotational axis is I. The scale divisions in the galvanometer are n and resistance of the coil is R. If a current i_0 in the coil produces a deflection of pi//3 radian to the pointer of galvanometer, the value of torsional constant of the spring is

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