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

Aluminum is a:

Question # 2

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

Question # 3

Which instrument is expensive and difficult to use?

Question # 4

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

Question # 5

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

Question # 6

As the current flows through the wire

Question # 7

The value of relative permittivity of different dielectrics are:

Question # 8

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

Question # 9

An ideal voltmeter has:

Question # 10

Electric flux is:

Question # 11

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

Question # 12

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

Question # 13

A rheostat can e used:

Question # 14

An important part of photocopier is:

Question # 15

Most practical application of electricity involve

Question # 16

The third band of the colour code:

Question # 17

Xerography means:

Question # 18

An electric field is generated along the wire when:

Question # 19

In gases, the charge carries are:

Question # 20

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 # 21

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

Question # 22

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

Question # 23

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

Question # 24

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

Question # 25

In gases, the charge carriers are:

Question # 26

The current that flows through the coil of a motor causes

Question # 27

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

Question # 28

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

Question # 29

The best conductor is:

Question # 30

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

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1

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

Decreasing from zero to maximum

B.

Increasing from zero to maximum

C.

Decreasing from maximum to zero

D.

Increasing from maximum to zero
2 The number of field lines passing through unit area held perpendicular to the field lines represent:
A.

Flux in that region

B.

Intensity of the field

C.

Charge

D.

Area of the region
3 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
4 In case of metallic conductors, the charge carriers are
A. Protons
B. Electrons
C. Antiprotons
D. Positrons
5 The earth’s potential and potential at infinity are taken:
A.

Equal

B.

Zero

C.

First is greater than the second

D.

Second is greater than the first
6 The value of resistivity is the least for:
A. Copper
B. Aluminimum
C. Silver
D. Tungsten
7

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
8 Static electricity is produced by the transfer of:
A.

Electrons

B.

Protons

C.

One fluid

D.

Two fluids
9 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)
10 Magnetic effect of current is used:
A.

In electric motor

B.

To detect current

C.

To measure current

D.

All of these

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