When a copper voltameter is connected with a battery of e.m.f. 12 volt – McqOptions

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1.	When a copper voltameter is connected with a battery of e.m.f. 12 volts. 2 gms of copper is deposited in 30 minutes. If the same voltameter is connected across a 6 volt battery, then the mass of copper deposited in 45 minutes would be [SCRA 1994]
A.	1 gm
B.	1.5 gm
C.	2 gm
D.	2.5 gm
Answer» C. 2 gm

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