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

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Question # 1

Which instrument is expensive and difficult to use?

Question # 2

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

Question # 3

The flux through a closed surface depends upon:

Question # 4

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

Question # 5

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

Question # 6

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

Question # 7

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

Question # 8

The emf is measured in:

Question # 9

In gases, the charge carriers are:

Question # 10

The third band of the colour code:

Question # 11

Aluminum is a:

Question # 12

Kirchhoff's first rule is also called:

Question # 13

A field free region is found:

Question # 14

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

Question # 15

A rheostat can e used:

Question # 16

Xerography means:

Question # 17

The magnitude of chemical Effects depends upon:

Question # 18

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

Question # 19

Gaussian surface is always:

Question # 20

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

Question # 21

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

Question # 22

Most practical application of electricity involve

Question # 23

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

Question # 24

An example of photoconductor is:

Question # 25

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

Question # 26

In a metal, the valence electrons are:

Question # 27

The inkjet printer ejects a thin stream of:

Question # 28

Thermistors are prepared under

Question # 29

The surface destiny of charge is defined is:

Question # 30

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

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 An example of photoconductor is:
A.

Boron

B.

Carbon

C.

Iron

D.

Aluminum
2

Electric flux is:
A. Cross product of two vector

B.

Dot product of two vectors

C.

A vector quantity

D.

A scalar quantity
3

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

Different

B.

Same

C.

Such that it is greater in the first case

D.

Such that it is greater in the second case
4 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
5 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
6 As the current flows through the wire
A. It generates heat in the wire
B. It produces sound in the wire
C. Resistance of the wire decrease
D. Voltage across the ends is the increase
7

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
8

Heating effect of current utilized in:
A.

Electric motor

B.

Electric toaster

C.

Electroplating

D.

Electric kettle
9 The passage of current is accompanied by a magnetic field in the surrounding space:
A.

Always accompanied

B.

Sometimes accompanied

C.

Never accompanied

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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