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A galvanometer is to be converted into a...

A galvanometer is to be converted into a voltmeter and an ammeter successively by using either of two resistances `R_1 and R_2 (R_1 gt R_2)`

A

`R_1` in series with galvanometer and `R_2` in parallel

B

`R_2` in series with galvanometer and `R_1` in parallel

C

`R_1` in parallel with ganvanometer and `R_2` in series

D

`R_2` in parallel with galvanometer and `R_1` in series

Text Solution

Verified by Experts

The correct Answer is:
A
Resistance =p.d. / current.
Thus , the measurement of current ammeter is connected in series with the circuit, because current in series circuit is same. For measurement of potential because potential difference in parallel circuit in same.
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