MCQOPTIONS
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MCQOPTIONS
This section includes 12 Mcqs, each offering curated multiple-choice questions to sharpen your Electrical Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The correct expression for the instantaneous current if instantaneous voltage is Vm(sint) in an inductive circuit is? |
| A. | i = Vm(sint)/XL |
| B. | i = Vm(cost)/XL |
| C. | i = -Vm(sint)/XL |
| D. | i = -Vm(cost)/XL |
| Answer» E. | |
| 2. |
Can ohm’s law be applied in an ac circuit? |
| A. | Yes |
| B. | No |
| C. | Depends on the rms current |
| D. | Depends on the rms voltage |
| Answer» B. No | |
| 3. |
The correct expression for the instantaneous current if instantaneous voltage is Vm(sint) in a resistive circuit is? |
| A. | 1A |
| B. | 2A |
| C. | 3A |
| D. | 4A |
| Answer» C. 3A | |
| 4. |
Instantaneous voltage is the product of resistance and _____________ current in a resistive circuit. |
| A. | Instantaneous |
| B. | Average |
| C. | RMS |
| D. | Peak |
| Answer» B. Average | |
| 5. |
An induced emf is said to be? |
| A. | Inductive |
| B. | Capacitive |
| C. | Resistive |
| D. | Cannot be determined |
| Answer» B. Capacitive | |
| 6. |
Can ohm’s law be applied in an ac circuit?$ |
| A. | Yes |
| B. | No |
| C. | Depends on the rms current |
| D. | Depends on the rms voltage |
| Answer» B. No | |
| 7. |
The correct expression for the instantaneous current in a resistive circuit is? |
| A. | i=Vm(sint)/R |
| B. | i=Vm(cost)/R |
| C. | i=V(sint)/R |
| D. | i=V(cost)/R |
| Answer» B. i=Vm(cost)/R | |
| 8. |
Calculate the resistance in the circuit if the rms voltage is 20V and the rms current is 2A. |
| A. | 2 ohm |
| B. | 5 ohm |
| C. | 10 ohm |
| D. | 20 ohm |
| Answer» D. 20 ohm | |
| 9. |
If the maximum voltage in the circuit is 10V and the resistance is 5 ohm, calculate the maximum current in the circuit. |
| A. | 1A |
| B. | 2A |
| C. | 3A |
| D. | 4A |
| Answer» C. 3A | |
| 10. |
The power for a purely resistive circuit is zero when? |
| A. | Current is zero |
| B. | Voltage is zero |
| C. | Both current and voltage are zero |
| D. | Either current or voltage is zero |
| Answer» E. | |
| 11. |
Find the value of the instantaneous voltage if the resistance is 2 ohm and the instantaneous current in the circuit is 5A. |
| A. | 5V |
| B. | 2V |
| C. | 10V |
| D. | 2.5V |
| Answer» D. 2.5V | |
| 12. |
The instantaneous voltage is a product of the resistance and the _____________ current in a resistive circuit. |
| A. | Instantaneous |
| B. | Average |
| C. | RMS |
| D. | Peak |
| Answer» B. Average | |