question_answer

In the LC circuit, the current in the direction shown and the charges on the capacitor plates have the signs shown. At this time

A)  I is increasing and Q is increasing                 

B)  I is increasing and Q is decreasing                

C) I is decreasing and Q is increasing               

D) I is decreasing and Q is decreasing              

Correct Answer: B

Solution :

As it can be easily seen by the direction of I that Q is decreasing thus, energy of capacitor is decreasing and hence, energy of inductance is increasing or \[\left( \frac{1}{2}L{{I}^{2}} \right)\]gives that I is increasing.