Moving Charges and Magnetism - Result Question 84
86. A galvanometer having a resistance of $8 ohms$ is shunted by a wire of resistance 2 ohms. If the total current is $1 amp$, the part of it passing through the shunt will be
(a) $0.25 amp$
(b) $0.8 amp$
(c) $0.2 amp$
(d) $0.5 amp$
[1998]
Show Answer
Answer:
Correct Answer: 86. (b)
Solution:
- (b) $I_s=I \times \frac{G}{S+G}=1 \times \frac{8}{2+8}$
$ =\frac{8}{10}=0.8 amp . $
