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

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

Question # 2

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

Question # 3

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

Question # 4

Tick the correct statement:

Question # 5

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

Question # 6

The value of relative permittivity of different dielectrics are:

Question # 7

Aluminum is a:

Question # 8

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

Question # 9

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

Question # 10

An example of photoconductor is:

Question # 11

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

Question # 12

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

Question # 13

In gases, the charge carries are:

Question # 14

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

Question # 15

A field free region is found:

Question # 16

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

Question # 17

An important part of inkjet printer is:

Question # 18

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

Question # 19

Xerography means:

Question # 20

SI unit of current describes the flow of charge at the rate of

Question # 21

An inkjet printer uses in its operation:

Question # 22

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

Question # 23

The inkjet printer ejects a thin stream of:

Question # 24

As the current flow through the wire:

Question # 25

In case of metallic conductors, the charge carriers are

Question # 26

Gaussian surface is always:

Question # 27

An ideal voltmeter has:

Question # 28

Electric field lines emerge from the charge in:

Question # 29

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

Question # 30

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

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 The best conductor is:
A. Silver
B. Copper
C. Aluminimum
D. Both B and C
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

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

Both the conductors are at the same potential

B.

Potential difference across the conductors remain constant

C.

Potential difference across the conductors becomes zero

D.

Both (A) and (B)
4

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

At rest

B.

At rest under the action of electric forces

C.

In motion under the action of electric forces

D.

In motion
5 In case of metallic conductors, the charge carriers are
A. Protons
B. Electrons
C. Antiprotons
D. Positrons
6

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
7 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
8 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
9 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
10

Heating effect of current utilized in:
A.

Electric motor

B.

Electric toaster

C.

Electroplating

D.

Electric kettle

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