Exam 2: Alternating-Current Circuits Containing Resistance

Explore all topics

When the current and the voltage waveforms of a circuit are zero at the same time and reach their maximum values at the same time and in the same direction, these waves are said to be in ____________________.

Free

(Short Answer)

4.8/5

(24)

Question 1

Correct Answer:

Verified

phase

Give an explanation of the term impedance.

Free

(Essay)

4.8/5

(47)

Question 2

Correct Answer:

Verified

The term impedance is generally used to describe the total current limiting effect in alternating current circuits. Impedance is a combination of all current limiting properties such as resistance, inductance, and capacitance.

Why is it necessary to determine the peak value if a solid state component is to be connected to an ac circuit?

Free

(Essay)

4.9/5

(25)

Question 3

Correct Answer:

Verified

If a solid state component is to be connected into an ac circuit, it is generally necessary to determine the peak value to make certain the component will not be damaged.

Some manufacturers of dc instruments modify the circuit connections and the scale calibrations to measure ac voltages and currents.

(True/False)

4.9/5

(39)

Question 4

Why are silicon rectifiers used in meters?

(Essay)

4.8/5

(25)

Question 5

____________________'s law states that the current in a resistor is directly proportional to the voltage and inversely proportional to the magnitude of the resistance of the circuit.

(Short Answer)

4.8/5

(43)

Question 6

The RMS value of current is the current indicated by the typical ____________________.

(Short Answer)

4.9/5

(37)

Question 7

A device called a(n) ____________________ is used to measure the area of the alternation between the wave and the zero reference line.

(Short Answer)

4.9/5

(32)

Question 8

What is the root-mean-square current?

(Essay)

4.8/5

(32)

Question 9

The dc voltmeter has a d'Arsonval movement, which operates on the same principle as a dc motor.

(True/False)

4.7/5

(35)

Question 10

The voltage ratings of solid state devices are given as PIV (peak inverse voltage) or PRV (peak reverse voltage).

(True/False)

4.9/5

(33)

Question 11

The product of effective volts and effective amperes is less than the power in watts in any ac circuit having a noninductive resistance load where the current and the voltage are in phase.

(True/False)

4.7/5

(30)

Question 12

____________________ instruments have uniform scale graduations and markings for the entire scale range.

(Short Answer)

4.9/5

(33)

Question 13

Discuss the effective value of alternating current.

(Essay)

4.9/5

(36)

Question 14

Full-wave rectifiers eliminate one half of the waveform and retain the other.

(True/False)

4.9/5

(30)

Question 15

Showing 1 - 15 of 15

When the current and the voltage waveforms of a circuit are zero at the same time and reach their maximum values at the same time and in the same direction, these waves are said to be in ____________________.

Give an explanation of the term impedance.

Why is it necessary to determine the peak value if a solid state component is to be connected to an ac circuit?

Some manufacturers of dc instruments modify the circuit connections and the scale calibrations to measure ac voltages and currents.

Why are silicon rectifiers used in meters?

____________________'s law states that the current in a resistor is directly proportional to the voltage and inversely proportional to the magnitude of the resistance of the circuit.

The RMS value of current is the current indicated by the typical ____________________.

A device called a(n) ____________________ is used to measure the area of the alternation between the wave and the zero reference line.

What is the root-mean-square current?

The dc voltmeter has a d'Arsonval movement, which operates on the same principle as a dc motor.

The voltage ratings of solid state devices are given as PIV (peak inverse voltage) or PRV (peak reverse voltage).

The product of effective volts and effective amperes is less than the power in watts in any ac circuit having a noninductive resistance load where the current and the voltage are in phase.

____________________ instruments have uniform scale graduations and markings for the entire scale range.

Discuss the effective value of alternating current.

Full-wave rectifiers eliminate one half of the waveform and retain the other.

Introduction to Alternating Current

Inductance in Alternating-Current Circuits

Series Circuitsresistance and Impedance

Capacitors and Rc Time Constants

Capacitors in Alternating-Current Circuits

Series Circuits: Resistance, Inductive Reactance, and Capacitive Reactance

Ac Parallel Circuits

Seriesparallel Circuits

Three-Phase Systems

Ac Instruments and Meters

Alternating-Current Generators

Transformers

Transformer Connections for Three-Phase Circuits

Special Transformer Applications

Three-Phase Induction Motors

The Synchronous Motor

Single-Phase Motors

Control Circuits

Filters