When a copper voltmeter is connected with a battery of emf 12 V. – McqOptions

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1.	When a copper voltmeter is connected with a battery of emf 12 V. 2 g of copper is deposited in 30 mm. it the same voltmeter is connected across a 6 V battery then the mass of copper deposited in 45 mm would be
A.	1g
B.	1.5g
C.	2g
D.	2.5g
Answer» C. 2g

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