b) The same coil is then connected to an a.c. supply of 100 V (rms) and the current is found to be 6 A. Explain why the a.c. current is smaller than the d.c. current, by referring to the relationships between resistance (R), inductance (L), and impedance (Z).

b) The same coil is then connected to an a.c. supply of 100 V (rms) and the current is found to be 6 A. Explain why the a.c. current is smaller than the d.c. current, by referring to the relationships between resistance (R), inductance (L), and impedance (Z).

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter15: Alternating-current Circuits

Section: Chapter Questions

Problem 48P: A transformer is used to supply a 12-V model train with power from a 110-V wall plug. The train...

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Question

b) The same coil is then connected to an a.c. supply of 100 V (rms) and the current is found to be 6 A. Explain why the a.c.
current is smaller than the d.c. current, by referring to the relationships between resistance (R), inductance (L), and
impedance (Z).

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