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

Thermistors are prepared under

Question # 2

The inkjet printer ejects a thin stream of:

Question # 3

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

Question # 4

In gases, the charge carries are:

Question # 5

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

Question # 6

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

Question # 7

Static electricity is produced by the transfer of:

Question # 8

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

Question # 9

The strength of magnetic field at certain points around a wire depends upon:

Question # 10

An important part of photocopier is:

Question # 11

In case of metallic conductors, the change carries are:

Question # 12

The surface destiny of charge is defined is:

Question # 13

An eV is unit of:

Question # 14

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:

Question # 15

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

Question # 16

If the ends of a wire are connected to a battery an electric field E will be set up at:

Question # 17

The magnitude of chemical Effects depends upon:

Question # 18

The current that flows through the coil of a motor causes

Question # 19

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

Question # 20

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

Question # 21

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

Question # 22

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

Question # 23

Electric field lines emerge from the charge in:

Question # 24

The charge carriers in an electrolyte are

Question # 25

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

Question # 26

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

Question # 27

An example of photoconductor is:

Question # 28

Heating effect of current utilized in:

Question # 29

A thermistor is a resistor which is:

Question # 30

The third band of the colour code:

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1

The device which can convert heat energy into electrical energy is called:
A.

Thermistor

B.

Thermometer

C.

Thermostat

D.

Thermocouple
2 Magnetic effect of current is used:
A.

In electric motor

B.

To detect current

C.

To measure current

D.

All of these
3

The obvious effect/s of current is/are:
A.

Heating effect

B.

Magnetic effect

C.

Chemical effect

D.

Both (C) and (B)
4 The current that flows through the coil of a motor causes
A. Its shaft to revolve
B. Its brushes to rotate
C. Motor to move
D. Its shaft to rotate
5 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
6 The term drift velocity is used when the ends of a wire are:
A.

Connected to a laser source

B.

Connected to a voltage source

C.

Not connected to a voltage source

D.

At different values of potential
7 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
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 flow through the wire:
A.

It generates heat in the wire

B.

It produces sound in the wire

C.

Resistance of the wire decreases

D.

Voltage across the ends is increased
10 An eV is unit of:
A.

Potential

B.

Energy

C.

Work

D.

Power

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