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

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

Question # 2

The emf is measured in:

Question # 3

Selenium is:

Question # 4

An important part of photocopier is:

Question # 5

Conversion of chemical energy to electrical energy can be achieved by:

Question # 6

Gaussian surface is always:

Question # 7

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

Question # 8

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

Question # 9

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

Question # 10

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

Question # 11

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

Question # 12

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

Question # 13

The surface destiny of charge is defined is:

Question # 14

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

Question # 15

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

Question # 16

Electric field lines emerge from the charge in:

Question # 17

The value of resistivity is the least for:

Question # 18

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

Question # 19

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

Question # 20

An eV is unit of:

Question # 21

Xerography means:

Question # 22

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

Question # 23

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

Question # 24

In case of two identical charges placed certain distance apart, the electric field lines are:

Question # 25

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

Question # 26

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

Question # 27

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

Question # 28

In case of metallic conductors, the change carries are:

Question # 29

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

Question # 30

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

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1

In case of two identical charges placed certain distance apart, the electric field lines are:
A.

Straight lines

B.

Sine curves

C.

Curved

D.

Both (A) and (B)
2 If the ends of a wire are connected to a battery an electric field E will be set up at:
A.

The ends of the wire only

B.

Mid points of the wire only

C.

Every point within the wire

D.

At nodes only
3 Xerography means:
A.

Dry writing

B. Wet writing

C.

Poor writing

D.

Excellent writing
4

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

Greater than the speed at which they pass from left to right

B.

Less than the speed at which they pass from left to right

C.

The same speed at which they pass from left to right

D.

Any of above
5 In a metal, the valence electrons are:
A.

Attach to individual atoms

B.

Not attached to individual atoms

C.

Free to move within the metal

D.

Both (A) and (C)
6 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
7 Most practical application of electricity involve
A.

Charges at the rest

B.

Charges in the motion

C.

Electrons at rest

D.

Atoms in motion
8 In case of metallic conductors, the charge carriers are
A. Protons
B. Electrons
C. Antiprotons
D. Positrons
9

The charge carries in the electrolyte are:
A.

Positive ions

B.

Negative ions

C.

Either (A) or (B)

D.

Both (A) and (B)
10 When a constant potential difference is applied across the conductor, the drift velocity of electrons:
A.

Increases

B.

Decreases

C.

Remains the constant

D.

Either of these

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