Target Exam

CUET

Subject

Physics

Chapter

Alternating Current

Question:

A power transmission line feeds input power at 2400 V to a step-down transformer with its primary windings having 5000 turns. The output power is delivered at 240 V by the transformer. If the current in the primary coil of the transformer is 5 A and its efficiency is 95% then the current in the secondary will be

Options:

50 A

47.5 A

45 A

4.75 A

Correct Answer:

47.5 A

Explanation:

The correct answer is Option (2) → 47.5 A