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

Most practical applications of electricity involve

Question # 2

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

Question # 3

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

Question # 4

Magnetic effect of current is used:

Question # 5

In case of metallic conductors, the charge carriers are

Question # 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:

Question # 7

A field free region is found:

Question # 8

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

Question # 9

Aluminum is a:

Question # 10

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

Question # 11

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

Question # 12

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

Question # 13

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

Question # 14

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

Question # 15

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

Question # 16

An example of photoconductor is:

Question # 17

The free electrons in metals:

Question # 18

An eV is unit of:

Question # 19

In a metal, the valence electrons are:

Question # 20

Tick the correct statement:

Question # 21

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

Question # 22

As the current flow through the wire:

Question # 23

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

Question # 24

As the current flows through the wire

Question # 25

The surface destiny of charge is defined is:

Question # 26

Xerography means:

Question # 27

The best conductor is:

Question # 28

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

Question # 29

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

Question # 30

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

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 Another mean of electric potential energy per unit charge is given by:
A.

Electric intensity

B.

Potential gradient

C.

Electric Flux

D.

Potential difference
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:
A.

Same

B.

Different

C.

Opposite to each other

D.

At 60º with each other
3

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

One coulomb

B.

0.5 coulomb

C.

30 coulomb

D.

2 coulombs
4 When resistance of a current carrying wire increases due to rise in temperature, the drift velocity of electrons:
A.

Decreases

B.

Increases

C.

Remains the constant

D.

Either of these
5 Magnetic effect of current is used:
A.

In electric motor

B.

To detect current

C.

To measure current

D.

All of these
6 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
7 The fourth band is a:
A. Silver band
B. Red band
C. Gold band
D. Either A or C
8 The inkjet printer ejects a thin stream of:
A.

Water

B.

Oil

C.

Ink

D.

Any of above
9

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

Cell

B.

Voltmeter

C.

Thermocouple

D.

Potentiometer
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

Test Questions

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  • Hamza

    Hamza

    17 Aug 2019

    It has many error

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  • Salmankhan

    Salmankhan

    02 Feb 2018

    Sir g plz correct this mcq the device which convert electrical into machinical is called moter but here the answer is generator

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