ECAT Pre Engineering Physics Chapter 13 MCQ Test With Answer

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

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

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Physics ECAT Pre Engineering Chapter 13 Current Electricity

00:00
Question # 1

Most practical application of electricity involve

Question # 2

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

Question # 3

The positive charge moving in one direction is equivalent in all external affects to a:

Question # 4

The charge carries in the electrolyte are:

Question # 5

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 # 6

A rheostat can e used:

Question # 7

Heating effect of current utilized in:

Question # 8

A field free region is found:

Question # 9

An inkjet printer uses in its operation:

Question # 10

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

Question # 11

Most practical applications of electricity involve

Question # 12

The obvious effect/s of current is/are:

Question # 13

In gases, the charge carriers are:

Question # 14

In a metal, the valence electrons are:

Question # 15

When two spherical conducting balls at different potentials are joined by metallic wire, the current starts:

Question # 16

Electric field lines emerge from the charge in:

Question # 17

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

Question # 18

Electrolysis is the study of conduction of electricity through:

Question # 19

Which instrument is expensive and difficult to use?

Question # 20

Selenium is:

Question # 21

Gaussian surface is always:

Question # 22

In case of metallic conductors, the charge carriers are

Question # 23

In gases, the charge carries are:

Question # 24

In case of metallic conductors, the change carries are:

Question # 25

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

Question # 26

An electric field is generated along the wire when:

Question # 27

In a metal, the valence electrons are:

Question # 28

The flux through a closed surface depends upon:

Question # 29

In case of metallic conductors, the charge carriers are

Question # 30

An important part of photocopier is:

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 Which instrument is expensive and difficult to use?
A. Voltmeter
B. Potentiometer
C. CRO
D. Both A and C
2 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
3 The value of relative permittivity of different dielectrics are:
A.

Equal

B.

Different

C.

Greater than one

D.

Smaller than one
4 An eV is unit of:
A.

Potential

B.

Energy

C.

Work

D.

Power
5 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
6

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

Greater than the speed at which they pass from left to right

B.

Less than the speed at which they pass from left to right

C.

The same speed at which they pass from left to right

D.

Any of above
7 The electric flux through any surface depends upon:
A.

Intensity of electric field

B.

Area of the surface

C.

Angle between intensity and area

D.

All of these
8 When resistance of a current carrying wire increases due to rise in temperature, the drift velocity of electrons:
A.

Decreases

B.

Increases

C.

Remains the constant

D.

Either of these
9 In gases, the charge carriers are:
A. Electrons
B. Positive ions
C. Negative ions
D. Both A and C
10 The inkjet printer ejects a thin stream of:
A.

Water

B.

Oil

C.

Ink

D.

Any of above

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  • Hamza

    Hamza

    17 Aug 2019

    It has many error

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  • Salmankhan

    Salmankhan

    02 Feb 2018

    Sir g plz correct this mcq the device which convert electrical into machinical is called moter but here the answer is generator

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