A moving-coil galvanometer gives full-scale deflection with a current of and has an…

PHYSICS · Single correct · CBSE · Physics · Moving Charges and Magnetism · Moving Charges and Magnetism

Problem

A moving-coil galvanometer gives full-scale deflection with a current of

5\,\text{mA}

and has an internal resistance of

20\,\Omega

. To convert it into an ammeter capable of reading up to

2\,\text{A}

, the resistance that should be connected in parallel with the galvanometer is closest to (a)

0.010\,\Omega

(b)

0.050\,\Omega

(c)

0.50\,\Omega

(d)

0.025\,\Omega