ECAT Pre General Science Physics Chapter 13 MCQ Test With Answer

MCQ's Test For ECAT Pre General Science Physics Chapter 13 Current Electricity

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

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ECAT Pre General Science Physics Chapter 13 Current Electricity

00:00
Question # 1

Magnetic effect of current is used:

Question # 2

Xerography means:

Question # 3

The inkjet printer ejects a thin stream of:

Question # 4

When resistance of a current carrying wire increases due to rise in temperature, the drift velocity of electrons:

Question # 5

The effects of bends in a wire on its electrical resistance are:

Question # 6

Conversion of chemical energy to electrical energy can be achieved by:

Question # 7

In case of metallic conductors, the change carries are:

Question # 8

The third band of the colour code:

Question # 9

In order to have a constant current through wire, the potential difference across its end should:

Question # 10

As the current flows through the wire

Question # 11

The current that flows through the coil of a motor causes

Question # 12

Certain charge +q is placed at the center of a sphere. At each of the sphere,The directions of electric intensity and vector area are:

Question # 13

The surface destiny of charge is defined is:

Question # 14

Gaussian surface is always:

Question # 15

The example/s of non-electrical energy to electrical is/are:

Question # 16

The rate at which the free electrons pass through any section of a metallic wire from right to left is:

Question # 17

The earth’s potential and potential at infinity are taken:

Question # 18

The emf is measured in:

Question # 19

Electrolysis is the study of conduction of electricity through:

Question # 20

In gases, the charge carriers are:

Question # 21

Field lines are closer to each other in the region where the field is:

Question # 22

An ideal voltmeter has:

Question # 23

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

Question # 24

An electric field is generated along the wire when:

Question # 25

The rate at which the free electrons pass through any section of a metallic wire from right to left is:

Question # 26

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

Question # 27

Thermistors are prepared under

Question # 28

The fourth band is a:

Question # 29

Electric field lines emerge from the charge in:

Question # 30

When two spherical conducting balls at different potentials are joined by a metallic wire, after some time:

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 In a metal, the valence electrons are:
A.

Attach to individual atoms

B.

Not attached to individual atoms

C.

Free to move within the metal

D.

Both (A) and (C)
2

The current of 1 ampere is passing through a conductor. The charge passing through it in half a minute is:
A.

One coulomb

B.

0.5 coulomb

C.

30 coulomb

D.

2 coulombs
3 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)
4

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

Cell

B.

Voltmeter

C.

Thermocouple

D.

Potentiometer
5 The strength of magnetic field at certain points around a wire depends upon:
A.

Value of current passing

B.

Distance from the current element

C.

Color of the material

D.

Both (A) and (B)
6 When a constant potential difference is applied across the conductor, the drift velocity of electrons:
A.

Increases

B.

Decreases

C.

Remains the constant

D.

Either of these
7 SI unit of current describes the flow of charge at the rate of
A. One ampere per second
B. One coulomb per second
C. One electron per second
D. 6.25 x 1018electrons per second
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 As the current flows through the wire
A. It generates heat in the wire
B. It produces sound in the wire
C. Resistance of the wire decrease
D. Voltage across the ends is the increase
10 The earth’s potential and potential at infinity are taken:
A.

Equal

B.

Zero

C.

First is greater than the second

D.

Second is greater than the first

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