The magnitude of the impedance is Ω. The amplitude of the current through the resistor is mA.

University Physics Volume 2
18th Edition
ISBN:9781938168161
Author:OpenStax
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Chapter15: Alternating-current Circuits
Section: Chapter Questions
Problem 62CP: A 1.5k resistor and 30-mH inductor are connected in series, as below, across a120-V(rms)ac power...
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A resistor and inductor are connected in series across an ac generator. The voltage of the generator is given
by V(t) = Vo cos(wt), where V
is the magnitude of the impedance of the LR circuit? (b) What is the amplitude of the current through the
resistor? (c) What is the phase difference between the voltage and current?
120 V, w
120n rad/s, R= 650N, and L = 3 H. (a) What
Hint
a. The magnitude of the impedance is
Ω.
b. The amplitude of the current through the resistor is
mA.
c. The phase difference between the voltage and current is
rad. (Take the
positive phase difference to mean that voltage is leading the current by this phase difference.)
Transcribed Image Text:A resistor and inductor are connected in series across an ac generator. The voltage of the generator is given by V(t) = Vo cos(wt), where V is the magnitude of the impedance of the LR circuit? (b) What is the amplitude of the current through the resistor? (c) What is the phase difference between the voltage and current? 120 V, w 120n rad/s, R= 650N, and L = 3 H. (a) What Hint a. The magnitude of the impedance is Ω. b. The amplitude of the current through the resistor is mA. c. The phase difference between the voltage and current is rad. (Take the positive phase difference to mean that voltage is leading the current by this phase difference.)
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