Basic Electrical Engineering (3110005) MCQs

MCQs of DC Circuits

Showing 11 to 20 out of 137 Questions
1 2 3 4 5 6
11.

Many resistors connected in series will?

(a)

Divide the voltage proportionally among all the resistors
(b)

Divide the current proportionally
(c)

Increase the source voltage in proportion to the values of the resistors
(d)

Reduce the power to zero
Answer:

Option (a)

12.

It is preferable to connect bulbs in series or in parallel?

(a)

Series
(b)

Parallel
(c)

Both series and parallel
(d)

Neither series nor parallel
Answer:

Option (b)

13.

KCL is applied at

(a)

Loop
(b)

Node
(c)

Both loop and node
(d)

Neither loop nor node
Answer:

Option (b)

14.

Mesh analysis employs the method of _____________

(a)

KVL
(b)

KCL
(c)

Both KVL and KCL
(d)

Neither KCL nor KVL
Answer:

Option (a)

15.

For high frequencies, capacitor acts as

(a)

Open circuit
(b)

Short circuit
(c)

Amplifier
(d)

Rectifier
Answer:

Option (b)

16.

Capacitors charge and discharge in ____________ manner.

(a)

Liner
(b)

Constant
(c)

Square
(d)

Exponential
Answer:

Option (d)

17.

In superposition theorem, when we consider the effect of one voltage source, all the other voltage sources are _________

(a)

Shorted
(b)

Opened
(c)

Removed
(d)

Undisturbed
Answer:

Option (a)

18.

Thevenin resistance is found by

(a)

shorting all voltage sources
(b)

opening all current sources
(c)

shorting all voltage sources and opening all current sources
(d)

opening all voltage sources and shorting all current sources
Answer:

Option (c)

19.

Which of the following is also known as the dual of Thevenin's theorem?

(a)

Norton's theorem
(b)

Superposition theorem
(c)

Maximum power transfer theorem
(d)

Millman's theorem
Answer:

Option (a)

20.

A 250 V bulb passes a current of 0.3 A. Calculate the power in the lamp.

(a)

75 W
(b)

50 W
(c)

25 W
(d)

90 W
Answer:

Option (a)

Showing 11 to 20 out of 137 Questions
1 2 3 4 5 6