Explore topic-wise MCQs in Network Theory.

This section includes 10 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.

RESISTIVITY_OF_A_WIRE_DEPENDS_ON?$

A. length of wire
B. cross section area
C. material
D. all of the mentioned
Answer» D. all of the mentioned
Discussion
2.

In_a_current-voltage_relationship_graph_of_a_linear_resistor,_the_slope_of_the_graph_will_indicate$

A. conductance
B. resistance
C. resistivity
D. a constant
Answer» B. resistance
Discussion
3.

Conductance is expressed in terms o?

A. mho
B. mho/m
C. ohm/m
D. m/ohm
Answer» B. mho/m
Discussion
4.

Ohm’s law is not applicable to$

A. dc circuits
B. high currents
C. small resistors
D. semi-conductors
Answer» E.
Discussion
5.

Which of the following bulbs will have high resistance?

A. 220V, 60W
B. 220V,100W
C. 115V,60W
D. 115V,100 W
Answer» B. 220V,100W
Discussion
6.

A copper wire of length l and diameter d has potential difference V applied at its two ends. The drift velocity is V. If the diameter of wire is made d/4, then drift velocity becomes

A. V/16
B. 16V
C. V
D. V/4
Answer» C. V
Discussion
7.

In which of the following cases is Ohm’s law not applicable?$

A. Electrolytes
B. Arc lamps
C. Insulators
D. Vacuum ratio values
Answer» D. Vacuum ratio values
Discussion
8.

Consider a circuit with two unequal resistances in parallel, then

A. large current flows in large resistor
B. current is same in both
C. potential difference across each is same
D. smaller resistance has smaller conductance
Answer» D. smaller resistance has smaller conductance
Discussion
9.

An electric current of 10 A is the same as

A. 10 J/C
B. 10 V/C
C. 10C/sec
D. 10 W/sec
Answer» D. 10 W/sec
Discussion
10.

Resistance of a wire is yΩ. The wire is stretched to triple its length, then the resistance becomes

A. y/3
B. 3y
C. 6y
D. y/6
Answer» C. 6y
Discussion