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

In case of metallic conductors, the charge carriers are

Question # 2

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

Question # 3

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

Question # 4

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

Question # 5

An eV is unit of:

Question # 6

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

Question # 7

A rheostat can e used:

Question # 8

Which instrument is expensive and difficult to use?

Question # 9

In a metal, the valence electrons are:

Question # 10

An important part of photocopier is:

Question # 11

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

Question # 12

Gaussian surface is always:

Question # 13

The inkjet printer ejects a thin stream of:

Question # 14

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

Question # 15

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

Question # 16

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

Question # 17

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

Question # 18

Electrolysis is the study of conduction of electricity through:

Question # 19

An electric field is generated along the wire when:

Question # 20

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

Question # 21

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

Question # 22

In case of metallic conductors, the change carries are:

Question # 23

The current that flows through the coil of a motor causes

Question # 24

An important part of inkjet printer is:

Question # 25

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

Question # 26

Aluminum is a:

Question # 27

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

Question # 28

A thermistor is a resistor which is:

Question # 29

The quantity having the same unit as that of emf is:

Question # 30

The flux through a closed surface depends upon:

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1

The magnitude of chemical Effects depends upon:
A.

Nature of liquid

B.

Quantity of Electricity passed through the liquid

C.

Color of the liquid

D.

Both (A) and (C)
2 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
3 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
4 The inkjet printer ejects a thin stream of:
A.

Water

B.

Oil

C.

Ink

D.

Any of above
5 An important part of photocopier is:
A.

Toner cartridge

B. Deflection plates

C.

Charging electrode

D.

Print head
6 In case of metallic conductors, the charge carriers are
A. Protons
B. Electrons
C. Antiprotons
D. Positrons
7 A field free region is found:
A.

Near the outer surface of a hollow charged metal sphere

B.

In the interior of solid metal uncharged sphere

C.

In the interior of solid metal charged sphere

D.

Both (A) and (B)
8 Most practical application of electricity involve
A.

Charges at the rest

B.

Charges in the motion

C.

Electrons at rest

D.

Atoms in motion
9

While finding the electric intensity at a point between two oppositely charged parallel plates, the Gaussian surface is taken in the form of a hollow:
A.

Circle

B.

Rectangle

C.

Sphere

D.

Box
10 Electric field lines emerge from the charge in:
A.

One dimension

B.

Two dimensions

C.

Three dimensions

D.

Four dimensions

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