A) \[pE\,\sin \theta ,\,-pE\,\cos \theta \]
B) \[pE\,\sin \theta ,\,-2pE\,\cos \theta \]
C) \[pE\,\sin \theta ,\,2pE\,\cos \theta \]
D) \[pE\,\cos \theta ,\,-pE\,\sin \theta \]
Correct Answer: A
Solution :
(a) \[pE\,\sin \theta ,\,-pE\,\cos \theta \] Torque, \[\tau =pE\,\sin \theta \]and potential energy \[U=-pE\,\cos \theta \]You need to login to perform this action.
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