Question

80. A galvanometer having a resistance of 8 ohms is
shunted by a wire of resistance 2 ohms. If the
total current is 1 A, the part of it passing through
the shunt will be
(1) 0.2 A
(2) 0.8 A
(3) 0.25 A
(4) 0.5A​

Answer 1

Answer:

The answer is 0.8 A.

Explanation:

Here, VG=VS 

so IGG=ISS

or (I−IS)G=ISS

or IS=G+SIG=8+21×8=0.8A