MCQOPTIONS
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MCQOPTIONS
This section includes 17 Mcqs, each offering curated multiple-choice questions to sharpen your Network Theory 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 | |
| 9. |
DETERMINE_THE_AVERAGE_POWER_DELIVERED_TO_THE_CIRCUIT.?$ |
| A. | 620 |
| B. | 630 |
| C. | 640 |
| D. | 650 |
| Answer» E. | |
| 10. |
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.$# |
| A. | 61.5 |
| B. | 62.5 |
| C. | 63.5 |
| D. | 64.5 |
| Answer» C. 63.5 | |
| 11. |
Find the effective value of current in the question 7? |
| A. | 9 |
| B. | 10 |
| C. | 11 |
| D. | 12 |
| Answer» D. 12 | |
| 12. |
A voltage v (t) = 100sinωt is applied to a circuit. The current flowing through the circuit is i(t) = 15sin( ωt-30⁰). Find the effective value of voltage.$ |
| A. | 70 |
| B. | 71 |
| C. | 72 |
| D. | 73 |
| Answer» C. 72 | |
| 13. |
If a circuit has complex impedance, the average power is ______ |
| A. | power stored in inductor only |
| B. | power stored in capacitor only |
| C. | power dissipated in resistor only |
| D. | power stored in inductor and power dissipated in resistor |
| Answer» D. power stored in inductor and power dissipated in resistor | |
| 14. |
In case of purely capacitive circuit, average power = ____ and θ=___$ |
| A. | 0, 0‚Äö√Ö‚àû |
| B. | 1, 0‚Äö√Ö‚àû |
| C. | 1, 90‚Äö√Ö‚àû |
| D. | 0, 90‚Äö√Ö‚àû |
| Answer» E. | |
| 15. |
In case of purely resistive circuit, the average power is? |
| A. | V<sub>m</sub>I<sub>m</sub> |
| B. | V<sub>m</sub>I<sub>m</sub>/2 |
| C. | V<sub>m</sub>I<sub>m</sub>/4 |
| D. | V<sub>m</sub>I<sub>m</sub>/8 |
| Answer» C. V<sub>m</sub>I<sub>m</sub>/4 | |
| 16. |
Average power (Pavg) =? |
| A. | V<sub>eff</sub>I<sub>m</sub>cosθ |
| B. | V<sub>eff</sub>I<sub>eff</sub>cosθ |
| C. | V<sub>m</sub>I<sub>m</sub>cosθ |
| D. | V<sub>m</sub>I<sub>eff</sub>cosθ |
| Answer» C. V<sub>m</sub>I<sub>m</sub>cos‚âà√≠‚Äö√†√® | |
| 17. |
The equation of the average power (Pavg) is? |
| A. | (V<sub>m</sub>I<sub>m</sub>/2)cosθ |
| B. | (V<sub>m</sub>I<sub>m</sub>/2)sinθ |
| C. | V<sub>m</sub>I<sub>m</sub>cosθ |
| D. | V<sub>m</sub>I<sub>m</sub>sinθ |
| Answer» B. (V<sub>m</sub>I<sub>m</sub>/2)sin‚âà√≠‚Äö√†√® | |