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when a copper votameter is connected wit...

when a copper votameter is connected with a battery of emf `12V,2g` of copper is deposite in `30` min. if the same voltmeter is connected across a `6V` battery then the mass of copper deposite in `45` min would be

A

1g

B

1.5g

C

2g

D

2.5g

Text Solution

Verified by Experts

The correct Answer is:
B
`m = Z it = Z V/R t`
`(m_1)/(m_2) = (i_1t_1)/(V_2t_2) implies 2/(m_2) = (12xx30)/(6xx45)`
`m_(2) = 1.5 g`
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