13. The switch in the figure is closed at /-0 when the current / is zero. When /= 15 mA, what is the potential difference across the inductor? C a) 240 V b) 60 V c) 0 180 V 190 V 240 V 12 mH 4kf wwww 3

A 20.0 HZ, 16.0 V source produces a 2.00 mA current when connected to a capacitor. What is the capacitance?

A 20.0 kHz, 16.0 V source connected to an inductor produces a 2.00 A current. What is the inductance?

When the switch in Figure P32.18 is closed, the current takes 3.00 ms to reach 98.0% of its final value. If R = 10.0 , what is the inductance?

Presbycusis is a hearing loss due to age that progressively affects higher frequencies. A hearing aid amplifier is designed to amplify all frequencies equally. To adjust its output for presbycusis, would you put a capacitor in series or parallel with the hearing aid's speaker? Explain.

An RLC circuit consists of a 150- resistor, a 21.0-F capacitor, and a 466-mH inductor connected in series with a 120-V, 60.0-Hz power supply. (a) What is the phase angle between the current and the applied voltage? (b) Which reaches its maximum earlier, the current or the voltage?

(a) What is the characteristic time constant of a 25.0 mH inductor that has a resistance of 4.00 ? (b) If it is connected to a 12.0 V battery, what is the current after 12.5 ms?

The capacitor in Figure 23.55(b) will filler high—frequency signals by shorting them to earth/ground. (a) What capacitance is needed to produce a reactance of 10-0 m for a 5.00 kHz signal? (b) What would its reactance be at 3.00 Hz? (c) Discuss the implications of your answers to (a) and (b).

If the capacitors in Figure 23.55 are replaced by inductors, which acts as a low-frequency fitter and which as a high-frequency fitter?

Integrated Concepts Hydroelectric generators (see Figure 20.43) at Hoover Dam produce a maximum current of 8.00 103 A at 250 kV. (a) What is the power output? (b) The water that powers the generators enters and leaves the system at low speed (thus its kinetic energy does not change) but loses 160 m in altitude. How many cubic meters per second are needed, assuming 85.0% efficiency?