A) 40 J
B) 20 J
C) 100 J
D) 80 J
Correct Answer: A
Solution :
For Path ACB \[Q\text{ }=\text{ }60\text{ }J\] \[W\text{ }=\text{ }30\text{ }J\] \[\because \,\,\,\,Q\text{ }=\text{ }U\text{ }+\text{ }W\] \[\Rightarrow \,\,\,U\text{ }=\text{ }30\text{ }J\] Now, \[{{U}_{ACB}}\,\,=\,\,{{U}_{ADB}}\,\,=\,\,30\text{ }J\] For Path ADB:- \[U\,\,\,=\,\,30\text{ }J\] \[W=10\,J\] \[\Rightarrow \,\,\,Q=U+W=40\,J\] Option is correct.You need to login to perform this action.
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