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).
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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