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

Flux through a closed surface of any shape and flux through the surface of a sphere drawn around a charge are:

Question # 2

In case of metallic conductors, the charge carriers are

Question # 3

The value of relative permittivity of different dielectrics are:

Question # 4

The electric flux through any surface depends upon:

Question # 5

Which instrument is expensive and difficult to use?

Question # 6

A rheostat can e used:

Question # 7

An eV is unit of:

Question # 8

An important part of inkjet printer is:

Question # 9

The best conductor is:

Question # 10

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

Question # 11

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

Question # 12

In a metal, the valence electrons are:

Question # 13

The magnitude of chemical Effects depends upon:

Question # 14

In gases, the charge carriers are:

Question # 15

Xerography means:

Question # 16

An ideal voltmeter has:

Question # 17

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

Question # 18

In a metal, the valence electrons are:

Question # 19

The current that flows through the coil of a motor causes

Question # 20

The current that flows through the coil of a motor causes:

Question # 21

The flux through a closed surface depends upon:

Question # 22

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

Question # 23

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

Question # 24

Most practical application of electricity involve

Question # 25

The charge carriers in an electrolyte are

Question # 26

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

Question # 27

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

Question # 28

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

Question # 29

Magnetic effect of current is used:

Question # 30

The current of 1 ampere is passing through a conductor. The charge passing through it in half a minute is:

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 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
2 Which instrument is expensive and difficult to use?
A. Voltmeter
B. Potentiometer
C. CRO
D. Both A and C
3 The best conductor is:
A. Silver
B. Copper
C. Aluminimum
D. Both B and C
4 Another mean of electric potential energy per unit charge is given by:
A.

Electric intensity

B.

Potential gradient

C.

Electric Flux

D.

Potential difference
5

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

Zero

B.

Much larger

C.

Larger

D.

Smaller
6

Electric flux is:
A. Cross product of two vector

B.

Dot product of two vectors

C.

A vector quantity

D.

A scalar quantity
7 An important part of photocopier is:
A.

Toner cartridge

B. Deflection plates

C.

Charging electrode

D.

Print head
8 The emf is measured in:
A. Newton
B. Volt
C. J/C
D. Both A and B
9

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
10 The third band of the colour code:
A. Gives the number of zeroes
B. Is decimal multiplier
C. Gives the resistance tolerance
D. Gives the third digit

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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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