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

As the current flow through the wire:

Question # 2

The electric flux through any surface depends upon:

Question # 3

The emf is measured in:

Question # 4

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

Question # 5

In case of metallic conductors, the change carries are:

Question # 6

Tick the correct statement:

Question # 7

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

Question # 8

An example of photoconductor is:

Question # 9

The fourth band is a:

Question # 10

The charge carriers in an electrolyte are

Question # 11

The third band of the colour code:

Question # 12

An inkjet printer uses in its operation:

Question # 13

An ideal voltmeter has:

Question # 14

An eV is unit of:

Question # 15

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

Question # 16

Most practical applications of electricity involve

Question # 17

The best conductor is:

Question # 18

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

Question # 19

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

Question # 20

Most practical application of electricity involve

Question # 21

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

Question # 22

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

Question # 23

When resistance of a current carrying wire increases due to rise in temperature, the drift velocity of electrons:

Question # 24

The earth’s potential and potential at infinity are taken:

Question # 25

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

Question # 26

An electric field is generated along the wire when:

Question # 27

An important part of photocopier is:

Question # 28

In gases, the charge carries are:

Question # 29

Magnetic effect of current is used:

Question # 30

In case of metallic conductors, the charge carriers are

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 The charge carriers in an electrolyte are
A. Positive ions
B. Negative ions
C. Either A or B
D. Both A and B
2

The obvious effect/s of current is/are:
A.

Heating effect

B.

Magnetic effect

C.

Chemical effect

D.

Both (C) and (B)
3 Xerography means:
A.

Dry writing

B. Wet writing

C.

Poor writing

D.

Excellent writing
4 The emf is measured in:
A. Newton
B. Volt
C. J/C
D. Both A and B
5 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)
6 As the current flow through the wire:
A.

It generates heat in the wire

B.

It produces sound in the wire

C.

Resistance of the wire decreases

D.

Voltage across the ends is increased
7

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
8 Tick the correct statement:
A.

Both the potential and potential difference is scalars

B.

Potential is a scalar but potential difference is a vector

C. Both are vectors

D.

Potential is vector but potential difference is scalar
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 An important part of inkjet printer is:
A. Toner
B.

Drum

C.

Deflection plates

D.

Heated roles

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