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

Electric flux is:

Question # 2

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

Question # 3

Electrolysis is the study of conduction of electricity through:

Question # 4

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

Question # 5

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

Question # 6

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

Question # 7

The charge carries in the electrolyte are:

Question # 8

The electric flux through any surface depends upon:

Question # 9

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

Question # 10

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

Question # 11

The flux through a closed surface depends upon:

Question # 12

The best conductor is:

Question # 13

Xerography means:

Question # 14

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

Question # 15

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

Question # 16

The fourth band is a:

Question # 17

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

Question # 18

The interior of a hollow charged metal sphere is a region which:

Question # 19

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

Question # 20

Kirchhoff's first rule is also called:

Question # 21

An important part of inkjet printer is:

Question # 22

A thermistor is a resistor which is:

Question # 23

The value of resistivity is the least for:

Question # 24

The emf is measured in:

Question # 25

In gases, the charge carries are:

Question # 26

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

Question # 27

In case of metallic conductors, the charge carriers are

Question # 28

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

Question # 29

An eV is unit of:

Question # 30

Gaussian surface is always:

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 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
2 Which of the following substances has got positive temperature coefficient of resistance?
A. Carbon
B. Germanium
C. Silicon
D. Aluminium
3 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
4

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
5 The emf is measured in:
A. Newton
B. Volt
C. J/C
D. Both A and B
6

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

Straight lines

B.

Sine curves

C.

Curved

D.

Both (A) and (B)
7 If the ends of a wire are connected to a battery an electric field E will be set up at:
A.

The ends of the wire only

B.

Mid points of the wire only

C.

Every point within the wire

D.

At nodes only
8 Which instrument is expensive and difficult to use?
A. Voltmeter
B. Potentiometer
C. CRO
D. Both A and C
9 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
10 A thermistor is a resistor which is:
A. Light Sensitive
B. Heat Sensitive
C. Sound Sensitive
D. All of these

Test Questions

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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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