An electrical device has 50 turns in its primary coil  and 20 turns in the...

An electrical device has 50 turns in its primary coil and 20 turns in the...

Physics

WAEC 2020

An electrical device has 50 turns in its primary coil and 20 turns in the secondary coil. The device can be a\an?

A. step-up transformer
B. step-down transformer
C. d.c generator
D. a.c generator

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Correct Answer: Option B

Explanation

In a step down transformer, there are more turns in the primary coil than in the secondary coil and more current flows in the secondary circuit than in the primary.

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An electrical device has 50 turns in its primary coil and 20 turns in the...

Correct Answer: Option B

Explanation

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