Questions
Current sensitivity of a moving coil galvanometer is 5 div/mA and its voltage sensitivity (angular deflection per unit voltage applied) is 20 div/V. The resistance of the galvanometer is
detailed solution
Correct option is C
Current sensitivity θi= 510−3 = 5000 divA ....ivoltage sensitivity θV=20 divV ....iii/ii we get θ/iθ/V=500010 =250⇒ Vi=R=250 ΩTalk to our academic expert!
Similar Questions
A moving coil galvanometer has 150 equal divisions. Its current sensitivity is 10 divisions per milliampere and voltage sensitivity is 2 divisions per millivolt. In order that each division reads 1 volt, the resistance in ohms needed to be connected in series with the coil will be
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