Chapter 30.7, Problem 1FE

In a purely inductive AC circuit as shown in Figure P21.15, Vmax = 100. V. (a) The maximum current is 7.50 A at 50.0 Hz. Calculate the inductance L. (b) At what angular frequency is the maximum current 2.50A? Figure p21.15

In Figure P33.71, find the rms current delivered by the 45.0-V (rms) power supply when (a) the frequency is very large and (b) the frequency is very small.

A 2.00 kn resistor is connected to an AC voltage source with an rms voltage of 115 V. HINT (a) What is the maximum potential difference across the resistor (in V)? 162.63 V (b) What is the maximum current through the resistor (in A)? 9.79e-2 XA (c) What is the rms current through the resistor (in A)? 6.93e-2 XA (d) What is the average power dissipated by the resistor (in W)? 7.969 X W

An AC voltage source is connected to a resistor R 1.15 x 102 Ω. The output from an AC voltage source is given by the expression V = (1.80 x 102 v) sin 2rft. (a) What is the rms voltage across the resistor? V (b) What is the rms current flowing through the resistor? A

a) What is the reactance of a 20μF capacitor at a frequency of 140 Hz? Enter the units as "ohm" (lower case). b) What is the reactance of the same capacitor at a frequency of 6500 Hz?

What maximum current is delivered by an AC source with Δ V max 5 48.0 V and f = 90.0 Hz when connected across a 3.70-µF capacitor?

The rms current in a 25.0-0 resistor connected to an AC source is 2.00 A. (a) What is the rms voltage across this resistor? V (b) What is the peak voltage of the AC source? V (c) What is the average power dissipated by the resistor? W (d) What is the maximum current across this resistor? A

A capacitor is connected to an AC source. If the maximum current in the circuit is 0.460 A and the voltage from the AC source is given by  Δv = (87.4 V) sin[(82?)s−1t], determine the following.

An ac circuit includes a 155 Ω resistor in series with an 8.00 μF capacitor. The current in the circuit has amplitude 4.00×10−3 A. The frequency for which the capacitive reactance equals the resistance is 128 Hz.  (b) At this frequency, when the voltage across the resistor is maximum, what is the voltage across the capacitor? When the voltage across the capacitor is maximum, what is the voltage across the resistor?