A step-down transformer is used for recharging the batteries of portable electronic devices. The turns ratio N₂/N₁ for a particular transformer used in a DVD player is 1:12. When used with 120-V (rms) household service, the transformer draws an rms current of 22.5 mA from the house outlet. (a) Find the rms output voltage (in V) of the transformer. 10 (b) Find the power (in W) delivered to the DVD player. 2700 xw (c) What If? What would be the current (in mA) drawn from the house outlet if the transformer had an efficiency of 94.0%, but the power delivered to the Blu-ray player remains the same? mA

A step-down transformer is used for recharging the batteries of portable electronic devices. The turns ratio N₂/N₁ for a particular transformer used in a DVD player is 1:12. When used with 120-V (rms) household service, the transformer draws an rms current of 22.5 mA from the house outlet. (a) Find the rms output voltage (in V) of the transformer. 10 (b) Find the power (in W) delivered to the DVD player. 2700 xw (c) What If? What would be the current (in mA) drawn from the house outlet if the transformer had an efficiency of 94.0%, but the power delivered to the Blu-ray player remains the same? mA

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter32: Faraday’s Law Of Induction

Section: Chapter Questions

Problem 58PQ: A step-down transformer has 65 turns in its primary coil and 10 turns in its secondary coil. The...

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