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In Kelvin's method of finding the resist...

In Kelvin's method of finding the resistance of a galvanometer, we

A

use the balance point method.

B

use the null point method.

C

use the half deflection method.

D

interchange the positions of the battery and the galvanometer.

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Knowledge Check

  • Kelvin's method of determination of resistance of galvanometer by metre bridge is

    A
    equal deflection method
    B
    null deflection method
    C
    equal distance method
    D
    all of these

  • In a circuit for finding the resistance of a galvanometer by half deflection method, a 6 V battery and a high resistance of 11 kOmega are used. The figure of merit of the galvanometer is 60 muA//"division" . In the absence of shunt resistance, the galvanometer produces a deflection of theta =9 divisions when current flows in the circuit. The value of the shunt resistance that can cause the deflection of theta//2 , is closet to :

    A
    `550 Omega`
    B
    `220 Omega`
    C
    `55 Omega`
    D
    `110 Omega`

  • In an experiment to determine the resistance of a galvanometer by half deflection method, the circuit shown is used. In one set of readings , if R = 10 Omega S = 4 Omega , then the resistance of the galvanometer is

    A
    `20/3 Omega`
    B
    `40/3 Omega`
    C
    `50/3 Omega`
    D
    `70/3 Omega`

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