Moving Charges And Magnetism Ques 85
85. 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
[1998]
(a) $0.25 $ $amp$
(b) $0.8 $ $amp$
(c) $0.2 $ $amp$
(d) $0.5 $ $amp$
Show Answer
Answer:
Correct Answer: 85.(b)
Solution:
- (b) $I_s=I \times \frac{G}{S+G}=1 \times \frac{8}{2+8}$
$ =\frac{8}{10}=0.8 $ $amp . $
BETA
