ECAT Pre General Science Physics Chapter 13 MCQ Test With Answer

MCQ's Test For ECAT Pre General Science Physics Chapter 13 Current Electricity

Try The MCQ's Test For ECAT Pre General Science Physics Chapter 13 Current Electricity

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ECAT Pre General Science Physics Chapter 13 Current Electricity

00:00
Question # 1

As the current flows through the wire

Question # 2

A field free region is found:

Question # 3

An ideal voltmeter has:

Question # 4

The fourth band is a:

Question # 5

The free electrons in metals:

Question # 6

In gases, the charge carriers are:

Question # 7

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

Question # 8

The electric flux through any surface depends upon:

Question # 9

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

Question # 10

The best conductor is:

Question # 11

Xerography means:

Question # 12

An important part of inkjet printer is:

Question # 13

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

Question # 14

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

Question # 15

In gases, the charge carries are:

Question # 16

In case of metallic conductors, the charge carriers are

Question # 17

Selenium is:

Question # 18

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

Question # 19

A rheostat can e used:

Question # 20

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

Question # 21

Thermistors are prepared under

Question # 22

In case of metallic conductors, the change carries are:

Question # 23

An important part of photocopier is:

Question # 24

The value of relative permittivity of different dielectrics are:

Question # 25

Heating effect of current utilized in:

Question # 26

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

Question # 27

Most practical application of electricity involve

Question # 28

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 # 29

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

Question # 30

Which instrument is expensive and difficult to use?

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 The strength of magnetic field at certain points around a wire depends upon:
A.

Value of current passing

B.

Distance from the current element

C.

Color of the material

D.

Both (A) and (B)
2 In gases, the charge carriers are:
A. Electrons
B. Positive ions
C. Negative ions
D. Both A and C
3 The value of resistivity is the least for:
A. Copper
B. Aluminimum
C. Silver
D. Tungsten
4 In gases, the charge carries are:
A.

Electrons

B.

Positive ions

C.

Negative ions

D.

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

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

Chemical energy

B.

Mechanical energy

C.

Heat energy

D.

Both (A) and (B)
7

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

Cell

B.

Voltmeter

C.

Thermocouple

D.

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

No lines cross this area

B.

Maximum lines pass through this area

C.

The number of lines are between zero and maximum

D.

Both (A) and (B) correct
9 The inkjet printer ejects a thin stream of:
A.

Water

B.

Oil

C.

Ink

D.

Any of above
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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