CUET · PHYSICS · PYQ PAPER 2023
Which of the following statements are correct?
A. Mutual inductance between two coils does not depend upon shape and size or orientation of two coils.
B. In an AC generator mechanical energy is converted into electrical energy.
C. The direct current can be stepped up and stepped down with a transformer.
D. Lenz's law is a consequence of conservation of energy.
- A B and D only
- B A and C only
- C C and D only
- D A and B only
Answer & Solution
Correct Answer
(A) B and D only
Step-by-step Solution
Detailed explanation
Statement B is correct: An AC generator uses electromagnetic induction to convert mechanical work (like turning a turbine) into electrical energy. Statement D is correct: Lenz's law ensures that energy is conserved. The "opposing force" created by an induced current requires…
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