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

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Question # 1

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 # 2

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

Question # 3

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

Question # 4

In case of two identical charges placed certain distance apart, the electric field lines are:

Question # 5

An eV is unit of:

Question # 6

The value of relative permittivity of different dielectrics are:

Question # 7

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

Question # 8

A thermistor is a resistor which is:

Question # 9

When a constant potential difference is applied across the conductor, the drift velocity of electrons:

Question # 10

A field free region is found:

Question # 11

The emf is measured in:

Question # 12

Which of the following substances has got positive temperature coefficient of resistance?

Question # 13

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

Question # 14

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

Question # 15

The inkjet printer ejects a thin stream of:

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 surface destiny of charge is defined is:

Question # 18

The fourth band is a:

Question # 19

In gases, the charge carries are:

Question # 20

Electrostatics is the branch of physics which deals with the study of electro charges:

Question # 21

Which instrument is expensive and difficult to use?

Question # 22

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

Question # 23

Electric flux is:

Question # 24

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

Question # 25

Gaussian surface is always:

Question # 26

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

Question # 27

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

Question # 28

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

Question # 29

When certain area A is held parallel to the field lines, then:

Question # 30

Electrolysis is the study of conduction of electricity through:

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 Electric field lines emerge from the charge in:
A.

One dimension

B.

Two dimensions

C.

Three dimensions

D.

Four dimensions
2 Selenium is:
A.

An insulator

B.

A conductor

C.

Insulator in the dark and becomes conductor when exposed to light

D.

Conductor in the dark only
3

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:
A.

Same

B.

Different

C.

Opposite to each other

D.

At 60º with each other
4 An important part of photocopier is:
A.

Toner cartridge

B. Deflection plates

C.

Charging electrode

D.

Print head
5

An inkjet printer uses in its operation:
A.

Neutrons only

B.

Mesons only

C.

Positrons and photons

D.

An electric charge
6 In gases, the charge carries are:
A.

Electrons

B.

Positive ions

C.

Negative ions

D.

Both (A) and (C)
7

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

Zero

B.

Much larger

C.

Larger

D.

Smaller
8 Electrolysis is the study of conduction of electricity through:
A. Solids
B. Liquids
C. Gases
D. Plasma
9 A rheostat can e used:
A. As variable resistor
B. As potential divider
C. For varying the current
D. All of these
10 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)

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