Home Physics Alternating Current Statement Based Statement I: When a current flows in the coi…
Physics Alternating Current Statement Based MCQ (Single Correct)

Statement I: When a current flows in the coil of a transformer, then its core becomes hot.
Statement II: The core of transformer is made of iron.

In the light of the above statements, choose the most appropriate answer from the options given below.

A
Both Statement I and Statement II are incorrect.
B
Statement I is correct but Statement II is incorrect.
C
Statement I is incorrect but Statement II is correct.
D
Both Statement I and Statement II are correct.

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Text Solution

Verified by Experts
The correct answer is:
D

Both Statement I and Statement II are correct.

When alternating current flows through the coil of a transformer, the core of transformer is magnetised and demagnetised repeatedly. The electrical energy taken by the core during magnetisation is not returned fully in demagnetisation. The energy remaining in the core appears in the form of heat.

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