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

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Question # 1

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

Question # 2

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

Question # 3

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

Question # 4

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

Question # 5

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

Question # 6

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

Question # 7

An electric field is generated along the wire when:

Question # 8

The emf is measured in:

Question # 9

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

Question # 10

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

Question # 11

In gases, the charge carries are:

Question # 12

The inkjet printer ejects a thin stream of:

Question # 13

Which of the following substances has got positive temperature coefficient of resistance?

Question # 14

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

Question # 15

In a metal, the valence electrons are:

Question # 16

In gases, the charge carriers are:

Question # 17

The magnitude of chemical Effects depends upon:

Question # 18

The charge carries in the electrolyte are:

Question # 19

In a metal, the valence electrons are:

Question # 20

Xerography means:

Question # 21

A thermistor is a resistor which is:

Question # 22

The value of resistivity is the least for:

Question # 23

Which instrument is expensive and difficult to use?

Question # 24

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

Question # 25

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

Question # 26

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

Question # 27

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

Question # 28

The obvious effect/s of current is/are:

Question # 29

The current that flows through the coil of a motor causes

Question # 30

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

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1

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

Cell

B.

Voltmeter

C.

Thermocouple

D.

Potentiometer
2 A current of 1 ampere is passing through a conductor. The charge passing through it in half a minute s
A. One coulomb
B. 0.5 coulomb
C. 30 coulombs
D. 2 coulombs
3 Electrolysis is the study of conduction of electricity through:
A. Solids
B. Liquids
C. Gases
D. Plasma
4 A rheostat can e used:
A. As variable resistor
B. As potential divider
C. For varying the current
D. All of these
5 In a metal, the valence electrons are:
A. Attached to individual atoms
B. Not attached to individual atoms
C. Free to move within the metal
D. Both A and B
6 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
7

The magnitude of chemical Effects depends upon:
A.

Nature of liquid

B.

Quantity of Electricity passed through the liquid

C.

Color of the liquid

D.

Both (A) and (C)
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 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)
10

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

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