ECAT Pre Computer Science Chapter 13 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 13 Current Electricity

Try The MCQ's Test For ECAT Physics Chapter 13 Current Electricity

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ECAT Physics Chapter 13 Current Electricity

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Question # 1

The current that flows through the coil of a motor causes:

Question # 2

An example of photoconductor is:

Question # 3

The value of relative permittivity of different dielectrics are:

Question # 4

An eV is unit of:

Question # 5

In gases, the charge carriers are:

Question # 6

The value of resistivity is the least for:

Question # 7

Electrolysis is the study of conduction of electricity through:

Question # 8

The term drift velocity is used when the ends of a wire are:

Question # 9

The surface destiny of charge is defined is:

Question # 10

The passage of current is accompanied by a magnetic field in the surrounding space:

Question # 11

Another mean of electric potential energy per unit charge is given by:

Question # 12

The passage of current is accompanied by a magnetic field in the surrounding space:

Question # 13

The third band of the colour code:

Question # 14

SI unit of current describes the flow of charge at the rate of

Question # 15

The conventional current is the name given to current due to flow of:

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 The best conductor is:
A. Silver
B. Copper
C. Aluminimum
D. Both B and C
2 If the ends of a wire are connected to a battery an electric field E will be set up at:
A.

The ends of the wire only

B.

Mid points of the wire only

C.

Every point within the wire

D.

At nodes only
3 The positive charge moving in one direction is equivalent in all external affects to a:
A.

Negative charge is moving in the same direction

B.

Positive charge is moving in the opposite direction

C.

Negative charge moving in the opposite direction

D.

Positive charges moving in the same direction
4 An electric field is generated along the wire when:
A.

Its resistance is very high

B.

A constant potential is maintained across the wire

C.

Net current through the wire is zero

D.

A constant potential difference is maintained across the wire
5 The conventional current is the name given to current due to flow of
A. Positrons
B. Positive charges
C. Negative charges
D. Both A and C
6 The free electrons in metals:
A.

Are in random motion and their speed depends upon temperature

B.

Move in particular direction

C.

Move with speed of light

D.

Move such that their speed does not depend on their temperature
7

Two dissimilar metals joined at their ends kept at constant temperature constitute:
A.

Cell

B.

Voltmeter

C.

Thermocouple

D.

Potentiometer
8 The conventional current is the name given to current due to flow of:
A. Positrons
B.

Positive charges

C.

Negative charges

D.

Both (A) and (C)
9 Which of the following substances has got positive temperature coefficient of resistance?
A. Carbon
B. Germanium
C. Silicon
D. Aluminium
10 A current of 1 ampere is passing through a conductor. The charge passing through it in half a minute s
A. One coulomb
B. 0.5 coulomb
C. 30 coulombs
D. 2 coulombs

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