Explore topic-wise MCQs in Network Theory.

This section includes 5 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.

12, 1 H inductors are used as edge to form a cube. The inductance between two diagonally opposite corners of the cube is ____________

A. ( frac{5}{6} ) H
B. ( frac{10}{6} ) H
C. 2 H
D. ( frac{3}{2} ) H
Answer» B. ( frac{10}{6} ) H
Discussion
2.

A rectifier type AC voltmeter consists of a series resistance R, an ideal full-wave rectifier bridge and a PMMC instrument. A DC current of 1 mA produces a full-scale deflection of the instrument. The resistance of the instrument is 100 . A voltage of 100 V (rms) is applied to the input terminals. The value of R required is?

A. 63.56
B. 89.83
C. 89.83 k
D. 141.3 k
Answer» D. 141.3 k
Discussion
3.

An inductive coil connected to a 200 V, 50 Hz AC supply with 10 A current flowing through it dissipates 1000 W. The value of the impedance Z and Reactance XL are respectively ____________

A. 10 and 15
B. 20 and 17.3
C. 17.3 and 20
D. 15 and 10
Answer» C. 17.3 and 20
Discussion
4.

An inductive coil connected to a 200 V, 50 Hz AC supply with 10 A current flowing through it dissipates 1000 W. Which of the following will have least value?

A. Resistance R
B. Reactance X<sub>L</sub>
C. Impedance Z
D. Reactance X<sub>C</sub>
Answer» B. Reactance X<sub>L</sub>
Discussion
5.

A voltage waveform V (t) = 12t2 is applied across a 1 H inductor for t 0, with initial current through it being 0. The current through the inductor for t greater than 0 is ___________

A. 12t
B. 24t
C. 12t<sup>3</sup>
D. 4t<sup>3</sup>
Answer» E.
Discussion