Moving Charges and Magnetism - Result Question 79
81. A galvanometer having a coil resistance of 60 shows full scale deflection when a current of passes through it. It can be converted into an ammeter to read currents upto by
(a) putting in series a resistance of
(b) putting in series a resistance of
(c) putting in parallel a resistance of
(d) putting in parallel a resistance of
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Answer:
Correct Answer: 81. (c)
Solution:
- (c)
.
Let
Thus by putting