NEET
- Exam
- NEET
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- Physics
- Chapter
- Alternating Current
NEET · Physics · Alternating Current
Given below are two statements: one is labelled as Assertion (A)...
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : Average power consumed in an ac circuit is equal to average power consumed by resistors in the circuit.
Reason (R) : Average power consumed by capacitor and inductor is zero
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): Average power consumed in an AC circuit is equal to average power consumed by resistors in the circuit.
- This statement is true. In an AC circuit, only the resistive components consume average power. Capacitors and inductors do not consume power; they only store and release energy.
Reason (R): Average power consumed by the capacitor and inductor is zero.
- This statement is also true. Capacitors and inductors exchange energy with the circuit but do not dissipate power as heat; therefore, their average power consumption over a complete cycle is zero.
Now, assessing the relationship between the two statements:
- Both statements are true, and (R) correctly explains (A) because the zero average power of capacitors and inductors means that the average power in the circuit is indeed equal to that consumed by resistors.
Thus, the correct choice is:
(1) Both (A) and (R) are true and (R) is the correct explanation of (A).