NEETPhysicsAlternating Current
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : In an LC oscillation energy is not constant practically. Reason (R) : Energy is lost in resistance of inductor and of connecting wires and also in form of electromagnetic radiations. In the light of the above statements, choose the most appropriate answer from the options given below:
Options
- ABoth (A) and (R) are true and (R) is the correct explanation of (A).
- BBoth (A) and (R) are true and (R) is NOT the correct explanation of (A).
- C(A) is true but (R) is false.
- D(A) is false but (R) is true.
Correct answer
A. Both (A) and (R) are true and (R) is the correct explanation of (A).
Step-by-step solution
Assertion (A) is true because, in practical LC oscillations, energy is not constant due to losses. Reason (R) is also true as energy is lost in the resistance of the inductor, connecting wires, and as electromagnetic radiation, which explains why the energy is not constant.