MCQOPTIONS
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MCQOPTIONS
This section includes 8 Mcqs, each offering curated multiple-choice questions to sharpen your Network Theory Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Determine the average power delivered to the circuit consisting of an impedance Z = 5+j8 when the current flowing through the circuit is I = 5∠30⁰. |
| A. | 61.5 |
| B. | 62.5 |
| C. | 63.5 |
| D. | 64.5 |
| Answer» C. 63.5 | |
| 2. |
A voltage v (t) = 100sinωt is applied to a circuit. The current flowing through the circuit is i(t) = 15sin(ωt-30⁰). Determine the average power delivered to the circuit. |
| A. | 620 |
| B. | 630 |
| C. | 640 |
| D. | 650 |
| Answer» E. | |
| 3. |
A voltage v (t) = 100sinωt is applied to a circuit. The current flowing through the circuit is i(t) = 15sin(ωt-30⁰). Find the effective value of current. |
| A. | 9 |
| B. | 10 |
| C. | 11 |
| D. | 12 |
| Answer» D. 12 | |
| 4. |
A voltage v (t) = 100sinωt is applied to a circuit. The current flowing through the circuit is i(t) = 15sin(ωt-30⁰). Find the effective value of voltage. |
| A. | 70 |
| B. | 71 |
| C. | 72 |
| D. | 73 |
| Answer» C. 72 | |
| 5. |
In case of purely inductive circuit, average power = ____ and θ = ______ |
| A. | 0, 90⁰ |
| B. | 1, 90⁰ |
| C. | 1, 0⁰ |
| D. | 0, 0⁰ |
| Answer» B. 1, 90⁰ | |
| 6. |
In case of purely capacitive circuit, average power = ____ and θ = _____ |
| A. | 0, 0⁰ |
| B. | 1, 0⁰ |
| C. | 1, 90⁰ |
| D. | 0, 90⁰ |
| Answer» E. | |
| 7. |
Average power (Pavg)=? |
| A. | VeffImcosθ |
| B. | VeffIeffcosθ |
| C. | VmImcosθ |
| D. | VmIeffcosθ |
| Answer» C. VmImcosθ | |
| 8. |
The equation of the average power (Pavg) is? |
| A. | (VmIm/2)cosθ |
| B. | (VmIm/2)sinθ |
| C. | VmImcosθ |
| D. | VmImsinθ |
| Answer» B. (VmIm/2)sinθ | |