Question 1

True power, or watts, can be computed using any of the ____________________ formulas and pure resistive values.

Accepted Answer

watts

Question 2

In a parallel resistive-inductive circuit, the apparent power can be computed by multiplying the circuit voltage by the total ____.

Accepted Answer

In a parallel resistive-inductive circuit, the apparent power is computed by multiplying the circuit voltage by the total current flow. This is because apparent power, measured in volt-amperes (VA), is the product of the RMS values of voltage and current in the circuit.

Question 3

In a resistive-inductive parallel circuit, the current flow through the inductor will be ____________________ degrees out of phase with the voltage.

Accepted Answer

90

Question 4

The total current flow through the circuit can be found by ____ the current flow through the resistor and the inductor.

Accepted Answer

The current flow through the resistor and the inductor are in the same direction, so they add to give the total current flow through the circuit. Therefore, adding is the correct operation to find the total current flow.

Question 5

In a resistive-inductive parallel circuit, the voltage applied to any device in the circuit must be the same, so the voltage applied to the resistor and the inductor must be ____________________ and have the same value.

Accepted Answer

The answer of In a resistive-inductive parallel circuit, the voltage...

Question 6

In a resistive-parallel circuit, the circuit power factor is determined by the ratio of the apparent power to the ____ power.

Accepted Answer

In a resistive-parallel circuit, there are no reactive or inductive components. Therefore, the circuit power factor is determined only by the ratio of the apparent power to the true power, making option C the correct answer.

Question 7

The amount of energy in a circuit that is converted into some other form is known as ____________________.

Accepted Answer

The answer of The amount of energy in a circuit...

Question 8

_________________________, also known as watts, is the amount of electrical energy converted into some other form.

Accepted Answer

The answer of _________________________, also known as watts, is the...

Question 9

In any ____________________ circuit, the voltage is the same across each component in the circuit.

Accepted Answer

The answer of In any ____________________ circuit, the voltage is...

Question 10

In a resistive-inductive parallel circuit, if the voltage applied to the inductor is known, the ____ can be found by dividing the voltage by the inductive reactance.

Accepted Answer

The inductive reactance (XL) is given by XL = 2πfL, where f is the frequency of the applied voltage and L is the inductance of the inductor. If the voltage applied to the inductor is known, dividing it by the inductive reactance will give the current flow through the inductor, according to Ohm's law (I = V/XL). Therefore, the correct choice is D) current flow.

Question 11

VARs is also known as ____.

Accepted Answer

The answer of VARs is also known as ____.
...

Question 12

In a resistive-inductive parallel circuit, the current flow through the resistor will be ____ phase with the voltage.

Accepted Answer

In a resistive-inductive parallel circuit, the current through the resistor is in phase with the voltage across it because resistors do not cause a phase shift between voltage and current.

Question 13

True power and reactive power are ____ phase with each other.

Accepted Answer

True power is the power consumed by a circuit, while reactive power is the power that is exchanged between the circuit and the reactive components (inductors and capacitors). Reactive power is 90 degrees out of phase with true power.

Question 14

The total current-limiting effect in an AC circuit is known as ____________________.

Accepted Answer

The answer of The total current-limiting effect in an AC...

Question 15

In a parallel R-L circuit, the current flowing through the resistive parts of the circuit will be in phase with the ____________________.

Accepted Answer

The answer of In a parallel R-L circuit, the current...

Question 16

If the total current and the total voltage of a resistive-inductive parallel circuit are known, the total ____________________ can be computed by substituting Z for R in an Ohm's law formula.

Accepted Answer

The answer of If the total current and the total...

Question 17

In a parallel R-L circuit, the ____________________ of angle theta is equal to the power factor.

Accepted Answer

The answer of In a parallel R-L circuit, the ____________________...

Question 18

Impedance is symbolized by the letter ____.

Accepted Answer

Impedance is symbolized by the letter Z in electrical engineering.

Question 19

In an R-L series circuit, power factor is the ____ of the apparent power to the true power.

Accepted Answer

Power factor is defined as the ratio of true power (P) to apparent power (S). In an R-L series circuit, the true power is the power dissipated by the resistor and the reactive power is the power absorbed by the inductor. Therefore, the power factor is the ratio of the true power to the apparent power, which is the sum of the true power and the reactive power. Thus, the best choice is C, which states that power factor is a ratio.

Question 20

In an R-L parallel circuit, the ____ can be computed by dividing the current flow through the resistive parts of the circuit by the total circuit current.

Accepted Answer

The power factor of an R-L parallel circuit is the ratio of the current flowing through the resistive components to the total current flowing through the circuit. It is a measure of how effectively the circuit is using the supplied power.

Quiz 14: Resistive-Inductive Parallel Circuits