# Reactive Power MCQ’s

This set of Network Theory Multiple Choice Questions & Answers (MCQs) focuses on “Reactive Power”.

1. Reactive power is expressed in?

a) Watts (W)

b) Volt Amperes Reactive (VAR)

c) Volt Ampere (VA)

d) No units

2. The expression of reactive power (Pr) is?

a) V_{eff}I_{m}sinθ

b) V_{m}I_{m}sinθ

c) V_{eff}I_{eff}sinθ

d) V_{m}I_{eff}sinθ

3. The reactive power equation (P_{r}) is?

a) I_{eff}^{2} (ωL)sin2(ωt+θ)

b) I_{eff}^{2} (ωL)cos2(ωt+θ)

c) I_{eff}^{2} (ωL)sin(ωt+θ)

d) I_{eff}^{2} (ωL)cos(ωt+θ)

4. The power factor is the ratio of ________ power to the ______ power.

a) average, apparent

b) apparent, reactive

c) reactive, average

d) apparent, average

5. The average power (P_{avg}) is expressed as?

a) P_{a}secθ

b) P_{a}tanθ

c) P_{a}cosθ

d) P_{a}sinθ

6. A sinusoidal voltage v = 50sinωt is applied to a series RL circuit. The current in the circuit is given by I = 25sin (ωt-53⁰). Determine the apparent power (VA).

a) 620

b) 625

c) 630

d) 635

7. The expression of true power (P_{true}) is?

a) P_{a}sinθ

b) P_{a}cosθ

c) P_{a}tanθ

d) P_{a}secθ

8. The equation of reactive power is?

a) P_{a}cosθ

b) P_{a}secθ

c) P_{a}sinθ

d) P_{a}tanθ

9. A sinusoidal voltage v = 50sinωt is applied to a series RL circuit. The current in the circuit is given by I = 25sin (ωt-53⁰). Find the power factor.

a) 0.4

b) 0.5

c) 0.6

d) 0.7

10. A sinusoidal voltage v = 50sinωt is applied to a series RL circuit. The current in the circuit is given by I = 25sin (ωt-53⁰). Determine the average power.

a) 365

b) 370

c) 375

d) 380

### More Stories

### Advanced Problems Involving Complex Circuit Diagram-2 MCQ’s

This set of Network Theory Multiple Choice Questions & Answers (MCQs) focuses on “Advanced Problems Involving Complex Circuit Diagram-2". 1....

### Advanced Problems Involving Complex Circuit Diagram-1 MCQ’s

This set of Network Theory Multiple Choice Questions & Answers (MCQs) focuses on “Advanced Problems Involving Complex Circuit Diagram-1". 1....

### Advanced Problems on Network Theory – 2 MCQ’s

This set of Network Theory Multiple Choice Questions & Answers (MCQs) focuses on “Advanced Problems on Network Theory – 2"....

### Advanced Problems on Network Theory – 1 MCQ’s

This set of Network Theory Multiple Choice Questions & Answers (MCQs) focuses on “Advanced Problems on Network Theory – 1"....

### Properties of Transfer Functions MCQ’s

This set of Network Theory Multiple Choice Questions & Answers (MCQs) focuses on “Properties of Transfer Functions". 1. In a...

### Properties of Driving Point Functions MCQ’s

This set of Network Theory Multiple Choice Questions & Answers (MCQs) focuses on “Properties of Driving Point Functions". 1. The...

## Average Rating