The resistance of a dc galvanometer is 20 Ω. A current of 10 mA causes full scale deflection. To convert it into 0-300 V voltmeter, we have to use a series resistance of

The resistance of a dc galvanometer is 20 Ω. A current of 10 mA cause

1.	The resistance of a dc galvanometer is 20 Ω. A current of 10 mA causes full scale deflection. To convert it into 0-300 V voltmeter, we have to use a series resistance of
A.	30000 Ω
B.	29980 Ω
C.	6000 Ω
D.	15 Ω
Answer» C. 6000 Ω