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

Gaussian surface is always:

Question # 2

An inkjet printer uses in its operation:

Question # 3

Electrolysis is the study of conduction of electricity through:

Question # 4

The strength of magnetic field at certain points around a wire depends upon:

Question # 5

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

Question # 6

An eV is unit of:

Question # 7

In a metal, the valence electrons are:

Question # 8

The electric flux through any surface depends upon:

Question # 9

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

Question # 10

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

Question # 11

The inkjet printer ejects a thin stream of:

Question # 12

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

Question # 13

Heating effect of current utilized in:

Question # 14

Thermistors are prepared under

Question # 15

Xerography means:

Question # 16

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

Question # 17

Which instrument is expensive and difficult to use?

Question # 18

The charge carries in the electrolyte are:

Question # 19

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

Question # 20

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

Question # 21

Selenium is:

Question # 22

The charge carriers in an electrolyte are

Question # 23

Most practical application of electricity involve

Question # 24

A field free region is found:

Question # 25

The flux through a closed surface depends upon:

Question # 26

The surface destiny of charge is defined is:

Question # 27

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

Question # 28

Magnetic effect of current is used:

Question # 29

The best conductor is:

Question # 30

Static electricity is produced by the transfer of:

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 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
2 Which instrument is expensive and difficult to use?
A. Voltmeter
B. Potentiometer
C. CRO
D. Both A and C
3 Magnetic effect of current is used:
A.

In electric motor

B.

To detect current

C.

To measure current

D.

All of these
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

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

Zero

B.

Much larger

C.

Larger

D.

Smaller
6 Most practical applications of electricity involve
A. Charges at rest
B. Charges in motion
C. Electrons at rest
D. Atoms in motion
7 A thermistor is a resistor which is:
A. Light Sensitive
B. Heat Sensitive
C. Sound Sensitive
D. All of these
8 SI unit of current describes the flow of charge at the rate of
A. One ampere per second
B. One coulomb per second
C. One electron per second
D. 6.25 x 1018electrons per second
9 Xerography means:
A.

Dry writing

B. Wet writing

C.

Poor writing

D.

Excellent writing
10 Static electricity is produced by the transfer of:
A.

Electrons

B.

Protons

C.

One fluid

D.

Two fluids

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