Direction. In the follwing questions, a statement of assertion is followed by a statement of reason. While answering a question, you are required to choose the correct are out of the given four responses and mark it as
(A). If both assertion and reason are true and reason is the correct explanation of the assertion, (B) if both assertion and reason are true but reason is not correct explanation of the assertion. (C) if asssertion is true, but reason if false, (D) if assertion is false and reason is true
Assertion : if the current in a solenoid is reversed in direction while keeping the same magnitude , the magnetic field energy stored in teh solenoid decreases. Reason : The magnetic field energy density is proportional to the square of magnetic field.

Options

A. A
B. B
C. C
D. D