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

Electrolysis is the study of conduction of electricity through:

Question # 2

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

Question # 3

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

Question # 4

Magnetic effect of current is used:

Question # 5

As the current flows through the wire

Question # 6

The value of resistivity is the least for:

Question # 7

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

Question # 8

Thermistors are prepared under

Question # 9

In case of metallic conductors, the charge carriers are

Question # 10

An electric field is generated along the wire when:

Question # 11

The flux through a closed surface depends upon:

Question # 12

Aluminum is a:

Question # 13

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

Question # 14

An example of photoconductor is:

Question # 15

An important part of photocopier is:

Question # 16

The third band of the colour code:

Question # 17

As the current flow through the wire:

Question # 18

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

Question # 19

Most practical application of electricity involve

Question # 20

Heating effect of current utilized in:

Question # 21

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

Question # 22

Tick the correct statement:

Question # 23

The surface destiny of charge is defined is:

Question # 24

The emf is measured in:

Question # 25

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

Question # 26

In a metal, the valence electrons are:

Question # 27

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

Question # 28

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

Question # 29

Kirchhoff's first rule is also called:

Question # 30

Xerography means:

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 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
2 A thermistor is a resistor which is:
A. Light Sensitive
B. Heat Sensitive
C. Sound Sensitive
D. All of these
3

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

Protons

B.

Electrons

C.

Antiprotons

D.

Positrons
4

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

Cell

B.

Voltmeter

C.

Thermocouple

D.

Potentiometer
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 emf is measured in:
A. Newton
B. Volt
C. J/C
D. Both A and B
7 The value of relative permittivity of different dielectrics are:
A.

Equal

B.

Different

C.

Greater than one

D.

Smaller than one
8 An eV is unit of:
A.

Potential

B.

Energy

C.

Work

D.

Power
9 Magnetic effect of current is used:
A.

In electric motor

B.

To detect current

C.

To measure current

D.

All of these
10 An ideal voltmeter has:
A. Zero resistance
B. Small resistance
C. Large resistance
D. Infinite resistance

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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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