transformer is used to step down 160 V from a wall socket to 9.3 V for a radio. (a) If the primary winding has 540 turns, how many turns does the secondary winding have? (b) If the radio operates at a current of 460 mA, what is the current (in mA) through the primary winding?

transformer is used to step down 160 V from a wall socket to 9.3 V for a radio. (a) If the primary winding has 540 turns, how many turns does the secondary winding have? (b) If the radio operates at a current of 460 mA, what is the current (in mA) through the primary winding?

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter25: Electromagnetic Induction

Section: Chapter Questions

Problem 60A

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Question

A transformer is used to step down 160 V from a wall socket to 9.3 V for a radio.

(a)

If the primary winding has 540 turns, how many turns does the secondary winding have?

(b)

If the radio operates at a current of 460 mA, what is the current (in mA) through the primary winding?

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