A) 840 J
B) 840 erg
C) 840 W
D) 840 dyne
Correct Answer: A
Solution :
Key Idea : Work done is equal to heat supplied Work = Heat supplied We know that leal = 4.2 J, therefore W = 200 cal \[2\times {{10}^{-3}}V\] W = 840 JYou need to login to perform this action.
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