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

Kirchhoff's first rule is also called:

Question # 2

In a metal, the valence electrons are:

Question # 3

In a metal, the valence electrons are:

Question # 4

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

Question # 5

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

Question # 6

The best conductor is:

Question # 7

The fourth band is a:

Question # 8

An important part of inkjet printer is:

Question # 9

While finding the electric intensity at a point between two oppositely charged parallel plates, the Gaussian surface is taken in the form of a hollow:

Question # 10

The flux through a closed surface depends upon:

Question # 11

The current that flows through the coil of a motor causes

Question # 12

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

Question # 13

In order to have a constant current through wire, the potential difference across its end should:

Question # 14

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

Question # 15

The inkjet printer ejects a thin stream of:

Question # 16

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

Question # 17

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

Question # 18

Gaussian surface is always:

Question # 19

An electric field is generated along the wire when:

Question # 20

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

Question # 21

A rheostat can e used:

Question # 22

Most practical applications of electricity involve

Question # 23

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

Question # 24

An eV is unit of:

Question # 25

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

Question # 26

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

Question # 27

Aluminum is a:

Question # 28

Certain charge +q is placed at the center of a sphere. At each of the sphere,The directions of electric intensity and vector area are:

Question # 29

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

Question # 30

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

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1

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
2

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

Its shaft to revolve

B.

Its brushes to rotate

C.

Motor to move

D.

Its shafts to rotate
3 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)
4 The third band of the colour code:
A. Gives the number of zeroes
B. Is decimal multiplier
C. Gives the resistance tolerance
D. Gives the third digit
5 The free electrons in metals:
A.

Are in random motion and their speed depends upon temperature

B.

Move in particular direction

C.

Move with speed of light

D.

Move such that their speed does not depend on their temperature
6

In case of metallic conductors, the change carries are:
A.

Protons

B.

Electrons

C.

Antiprotons

D.

Positrons
7 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
8

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)
9

Heating effect of current utilized in:
A.

Electric motor

B.

Electric toaster

C.

Electroplating

D.

Electric kettle
10 In gases, the charge carries are:
A.

Electrons

B.

Positive ions

C.

Negative ions

D.

Both (A) and (C)

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