MCQ’s on Basic Electricals
Question 1
The terminals across the source are ………… if a current source is to be neglected.
(a) open-circuited
(b) short-circuited
(c) replaced by a capacitor
(d) replaced by a source resistance
Correct Answer is (a) open-circuited
Question 2
An active element in a circuit is
(a) Current source
(b) Resistance
(c) Inductance
(d) Capacitance
Correct Answer is (a) Current source
Question 3
A bilateral element is
(a) Resistor
(b) Inductor
(c) Capacitor
(d) All of these
Correct Answer is (d) All of these
Question 4
The circuit having same properties in either direction is called
(a) Bilateral circuit
(b) Unilateral circuit
(c) Irreversible circuit
(d) Reversible circuit
Correct Answer is (a) Bilateral circuit
Question 5
Kirchhoff’s laws are valid for
(a) Linear circuits only
(b) Passive time invariant circuits
(c) Non-linear circuits only
(d) Both linear and non-linear circuits
Correct Answer is (d) Both linear and non-linear circuits
Question 6
Kirchhoff’s laws are not applicable to circuits with
(a) Distributed parameters
(b) Lumped parameters
(c) Passive elements
(d) Non-linear resistances
Correct Answer is (a) Distributed parameters
Question 7
Kirchhoff’s current law is applicable only to
(a) Electric circuits
(b) Electronic circuits
(c) Junctions in a network
(d) Closed loops in a network
Correct Answer is (c) Junctions in a network
Question 8
Kirchhoff’s voltage law is concerned with
(a) IR drops
(b) Battery emfs
(e) Both IR drops and Battery emfs
(d) None of these
Correct Answer is (c) Both IR drops and Battery emfs
Question 9
According to Kirchhoffs voltage law, the algebraic sum of all IR drops and emfs in any closed loop of a network is always
(a) Negative
(b) Positive
(c) Zero
(d) Determined by emfs of the batteries
Correct Answer is (c) Zero
Question 10
The algebraic sign of an IR drop primarily depends upon the
(a) Direction of flow of current
(b) Battery connections
(c) Magnitude of current flowing through it
(d) Value of resistance
Correct Answer is (a) Direction of flow of current
