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This section includes 14 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. |
What value of direct current must flow through a resistor to produce the same heating power as an alternating current with a peak value of 3.5 A? |
A. | 1.5 A |
B. | 2.5 A |
C. | 3.5 A |
D. | 4.5 A |
Answer» C. 3.5 A | |
2. |
In an AC circuit, resistance 50 Ω, inductance 0.3 H and capacitance 15 μF is connected to an AC voltage source 25 V, 50 Hz. Determine the phase difference between current and voltage. |
A. | 670 |
B. | 540 |
C. | 470 |
D. | 770 |
Answer» B. 540 | |
3. |
Find the value of the source voltage from the following circuit. |
A. | 49.2V |
B. | 34.6V |
C. | 65.2V |
D. | 25.6V |
Answer» B. 34.6V | |
4. |
Find the value of the source current from the following circuit. |
A. | 2.54A |
B. | 6.67A |
C. | 3.35A |
D. | 7.65A |
Answer» B. 6.67A | |
5. |
In an AC circuit, resistance 50 Ω, inductance 0.3 H and capacitance 15 μF is connected to an AC voltage source 25 V, 50 Hz. Determine the current in the circuit. |
A. | 0.01 A |
B. | 0.2 A |
C. | 0.02 A |
D. | 0.002 A |
Answer» C. 0.02 A | |
6. |
In an AC circuit, resistance 50 Ω, inductance 0.3 H and capacitance 15 μF is connected to an AC voltage source 25 V, 50 Hz. Determine the impedance in the circuit. |
A. | 110 ohm |
B. | 100 ohm |
C. | 125 ohm |
D. | 140 ohm |
Answer» D. 140 ohm | |
7. |
In an AC circuit, resistance 50 Ω, inductance 0.3 H and capacitance 15 μF is connected to an AC voltage source 25 V, 50 Hz. Determine the capacitive reactance in the circuit. |
A. | 316 ohm |
B. | 195 ohm |
C. | 124 ohm |
D. | 212 ohm |
Answer» E. | |
8. |
In an AC circuit, resistance 50 Ω, inductance 0.3 H and capacitance 15 μF is connected to an AC voltage source 25 V, 50 Hz. Determine the inductive reactance in the circuit. |
A. | 36 ohm |
B. | 95 ohm |
C. | 125 ohm |
D. | 140 ohm |
Answer» C. 125 ohm | |
9. |
Kirchhoff’s laws are valid for __________?# |
A. | Linear circuits only |
B. | Both linear and non-linear circuits |
C. | Neither linear nor non-linear circuits |
D. | Both linear and non-linear circuits |
Answer» E. | |
10. |
According to KVL, the algebraic sums of all the IR products and the voltages in a loop is? |
A. | Always positive |
B. | Always negative |
C. | Always zero |
D. | Always infinity |
Answer» D. Always infinity | |
11. |
Nodal analysis is generally used to determine? |
A. | Voltage |
B. | Current |
C. | Resistance |
D. | Power |
Answer» B. Current | |
12. |
KVL is based on ___________ |
A. | Law of conservation of energy |
B. | Law of conservation of charge |
C. | Both conservation of energy and charge |
D. | Neither conservation of energy nor charge |
Answer» C. Both conservation of energy and charge | |
13. |
KCL is based on _____________ |
A. | Law of conservation of energy |
B. | Law of conservation of charge |
C. | Both conservation of energy and charge |
D. | Neither conservation of energy nor charge |
Answer» C. Both conservation of energy and charge | |
14. |
Mesh analysis is generally used to determine? |
A. | Voltage |
B. | Current |
C. | Resistance |
D. | Power |
Answer» C. Resistance | |