Explore topic-wise MCQs in Electrical Engineering.

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