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Of the two identical galvanometers one i...

Of the two identical galvanometers one is to be converted into an ammeter and another into a milliammeter. Which of the shunts will be of larger resistance?

A

less

B

equal

C

more

D

zero

Text Solution

Verified by Experts

The correct Answer is:
C
`I_g xx G=(I-I_g)x S therefore S=(I_gG)/(I-I_g)` We find that if we take `(I_g)_1 A` for the ammeter and `(I_g)_2=1 mA` foe he milliameter, then for the same I, the value of shunt required to convert it into a millainmeter is more than that required to convert it into an ammeter.
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  17. An ammeter has an internal resistance of 50 Omega when it is connected...

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  18. A galvanometer whose resistance is 120 Omega gives full scale deflecti...

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