Questions from College Physics

Q: An inductor has a 54.0 - Ω reactance when connected

An inductor has a 54.0 - Ω reactance when connected to a 60.0 - Hz source. The inductor is removed and then connected to a 50.0 - Hz source that produces a 100. - V rms voltage. What is the maximum cu...

Q: An AC power source has an rms voltage of 120 V and

An AC power source has an rms voltage of 120 V and operates at a frequency of 60.0 Hz. If a purely inductive circuit is made from the power source and a 47 - H inductor, determine (a) The inductive re...

Q: In a purely inductive AC circuit as shown in Figure P21.

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

Q: The output voltage of an AC generator is given by Δv =

The output voltage of an AC generator is given by Δv = (1.20 x 102 V) sin (30πt). The generator is connected across a 0.500 - H inductor. Find the (a) Frequency of the generator, (b) Rms voltage acros...

Q: Determine the maximum magnetic flux through an inductor connected to a standard

Determine the maximum magnetic flux through an inductor connected to a standard outlet (ΔVrms = 120. V, f = 60.0 Hz).

Q: A sinusoidal voltage Δv = (80.0 V) sin

A sinusoidal voltage Δv = (80.0 V) sin (150t) is applied to a series RLC circuit with L = 80.0 mH, C = 125.0 μF, and R = 40.0 Ω. (a) What is the impedance of the circuit? (b) What is the maximum curre...

Q: A series RLC circuit has resistance R = 50.0 Ω

A series RLC circuit has resistance R = 50.0 Ω and inductance L = 0.500 H. (a) Find the circuit’s capacitance C if the voltage source operates at a frequency of f = 60.0 Hz and the impedance is Z = R...

Q: A certain light-bulb is rated at 60.0 W

A certain light-bulb is rated at 60.0 W when operating at an rms voltage of 120. V. (a) What is the peak voltage applied across the bulb? (b) What is the resistance of the bulb? (c) Does a 100. - W bu...

Q: As the bar in Figure CQ20.5 moves perpendicular to the

As the bar in Figure CQ20.5 moves perpendicular to the field, is an external force required to keep it moving with constant speed? Figure CQ20.5:

Q: An inductor (L = 400. mH), a capacitor (

An inductor (L = 400. mH), a capacitor (C = 4.43 μF), and a resistor (R = 500. Ω) are connected in series. A 50.0 - Hz AC generator connected in series to these elements produces a maximum current of...