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 a metal, the valence electrons are:

Question # 2

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

Question # 3

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

Question # 4

The value of relative permittivity of different dielectrics are:

Question # 5

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 # 6

The third band of the colour code:

Question # 7

Tick the correct statement:

Question # 8

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

Question # 9

The number of field lines passing through unit area held perpendicular to the field lines represent:

Question # 10

The best conductor is:

Question # 11

In gases, the charge carriers are:

Question # 12

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 # 13

The charge carriers in an electrolyte are

Question # 14

The emf is measured in:

Question # 15

An ideal voltmeter has:

Question # 16

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

Question # 17

Heating effect of current utilized in:

Question # 18

In case of metallic conductors, the change carries are:

Question # 19

The value of resistivity is the least for:

Question # 20

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

Question # 21

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

Question # 22

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

Question # 23

Most practical application of electricity involve

Question # 24

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

Question # 25

The electric flux through any surface depends upon:

Question # 26

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

Question # 27

Aluminum is a:

Question # 28

An inkjet printer uses in its operation:

Question # 29

Static electricity is produced by the transfer of:

Question # 30

An electric field is generated along the wire when:

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 Aluminum is a:
A.

Good insulator

B.

Bad conductor

C.

Both (A) and (B)

D.

Excellent conductor
2 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
3

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

Contain some magnitude of electric field

B.

Is full of electric field lines

C.

Is field-free region

D.

Either (A) or (B)
5 Gaussian surface is always:
A.

Rectangular

B.

Spherical

C.

Cylindrical

D.

Box shape
6

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

Thermistor

B.

Thermometer

C.

Thermostat

D.

Thermocouple
7 A thermistor is a resistor which is:
A. Light Sensitive
B. Heat Sensitive
C. Sound Sensitive
D. All of these
8

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
9

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

Be zero

B.

Be maintained constant

C.

Goes on increasing

D.

Go on decreasing
10 The fourth band is a:
A. Silver band
B. Red band
C. Gold band
D. Either A or C

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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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