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

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

Question # 2

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 # 3

Heating effect of current utilized in:

Question # 4

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

Question # 5

Which instrument is expensive and difficult to use?

Question # 6

Most practical application of electricity involve

Question # 7

A thermistor is a resistor which is:

Question # 8

The current that flows through the coil of a motor causes

Question # 9

Magnetic effect of current is used:

Question # 10

Static electricity is produced by the transfer of:

Question # 11

Electrolysis is the study of conduction of electricity through:

Question # 12

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

Question # 13

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

Question # 14

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

Question # 15

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

Question # 16

Selenium is:

Question # 17

Gaussian surface is always:

Question # 18

An inkjet printer uses in its operation:

Question # 19

The free electrons in metals:

Question # 20

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

Question # 21

Electric flux is:

Question # 22

In case of metallic conductors, the charge carriers are

Question # 23

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

Question # 24

An eV is unit of:

Question # 25

Most practical applications of electricity involve

Question # 26

An important part of inkjet printer is:

Question # 27

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

Question # 28

Kirchhoff's first rule is also called:

Question # 29

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

Question # 30

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

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1

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:
A.

Circle

B.

Rectangle

C.

Sphere

D.

Box
2 The positive charge moving in one direction is equivalent in all external affects to a:
A.

Negative charge is moving in the same direction

B.

Positive charge is moving in the opposite direction

C.

Negative charge moving in the opposite direction

D.

Positive charges moving in the same direction
3 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
4 The electric flux through any surface depends upon:
A.

Intensity of electric field

B.

Area of the surface

C.

Angle between intensity and area

D.

All of these
5 As the current flows through the wire
A. It generates heat in the wire
B. It produces sound in the wire
C. Resistance of the wire decrease
D. Voltage across the ends is the increase
6 Thermistors are prepared under
A. High pressure and low temperature
B. High pressure and high temperature
C. Low pressure and low temperature
D. Low pressure and high temprature
7 A field free region is found:
A.

Near the outer surface of a hollow charged metal sphere

B.

In the interior of solid metal uncharged sphere

C.

In the interior of solid metal charged sphere

D.

Both (A) and (B)
8 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 shaft to rotate
9 Gaussian surface is always:
A.

Rectangular

B.

Spherical

C.

Cylindrical

D.

Box shape
10 Field lines are closer to each other in the region where the field is:
A.

Stronger

B.

Weaker

C.

Much weaker

D.

Absent

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