Exam 13: Inductors

Inductive reactance opposes a sine wave current, thus reducing the current.

Complete the following tables. Frequency = 400 Hz -Inductance Reactance 1000 mH __________

Figure 13-3 -In the circuit in Figure 13-3, how much time will elapse, after the switch is closed, before the current reaches its maximum value?

-What is the total inductance in the circuit in Figure 13-2?

Figure 13-1 -If the frequency in the circuit in Figure 13-1 is increased to 100 kHz, what is the total inductance?

Any conductor with a current flowing through it is an inductor.

An inductor opposes any change in current through it.

-What is the total reactance in Figure ?

Voltage leads the current in an inductor.

Complete the following tables. Frequency = 1.0 kHz -Inductance Reactance 0.6 mH __________

Complete the following tables. Frequency = 400 Hz -Inductance Reactance 1.0 H __________

When current flow tries to decrease in an inductor, the magnetic field and the voltage polarity across the inductor _ .

Inductors in parallel increase the total inductance in the circuit.

Before an inductor can reach a steady state after a current transient:

Figure 13-3 -In the circuit in Figure 13-3, one time constant is equal to:

Write the word or phrase that best completes each statement or answers the question. Complete the following tables. Frequency = 60 Hz -Inductance Reactance 2 H __________

Complete the following tables. Frequency = 10 kHz -Inductance Reactance 1000 µH __________

Complete the following tables. Frequency = 100 kHz -Inductance Reactance 100 µH __________

Complete the following tables. Frequency = 1.0 kHz -Inductance Reactance 250 mH __________

Complete the following tables. Frequency = 100 kHz -Inductance Reactance 1 µH __________