A transformer for a transistor radio reduces 120 V ac to 9.0 V ac. The secondary contains 30 turns and the radio draws 400 mA. Calculate a. the number of turns in the primary b. the current in the primary c. the power transformed
A transformer for a transistor radio reduces 120 V ac to 9.0 V ac. The secondary contains 30 turns and the radio draws 400 mA. Calculate a. the number of turns in the primary b. the current in the primary c. the power transformed
Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter33: Inductors And Ac Circuits
Section: Chapter Questions
Problem 74PQ
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A transformer for a transistor radio reduces 120 V ac to 9.0 V ac. The secondary contains 30 turns and the radio draws 400 mA.
Calculate
a. the number of turns in the primary
b. the current in the primary
c. the power transformed
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