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 -a)105b)103c)9995d)99995Correct answer is option 'C'. Can you explain this answer?

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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 -

a)
10⁵
b)
10³
c)
9995
d)
99995

Correct answer is option 'C'. Can you explain this answer?

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A moving coil galvanometer has 150 equal divisions. Its current sensit...

KEY CONCEPT : Resistance of Galvanometer,

Here i_g = Full scale deflection current = 150/10 = 15 mA

V = voltage to be measured = 150 volts (such that each division reads 1 volt)

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