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 charge carries in the electrolyte are:

Question # 2

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

Question # 3

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

Question # 4

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

Question # 5

Xerography means:

Question # 6

An ideal voltmeter has:

Question # 7

The surface destiny of charge is defined is:

Question # 8

In case of metallic conductors, the charge carriers are

Question # 9

Tick the correct statement:

Question # 10

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

Question # 11

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

Question # 12

Electrolysis is the study of conduction of electricity through:

Question # 13

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

Question # 14

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

Question # 15

A thermistor is a resistor which is:

Question # 16

The best conductor is:

Question # 17

The flux through a closed surface depends upon:

Question # 18

An example of photoconductor is:

Question # 19

Aluminum is a:

Question # 20

An inkjet printer uses in its operation:

Question # 21

As the current flow through the wire:

Question # 22

Kirchhoff's first rule is also called:

Question # 23

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

Question # 24

When two spherical conducting balls at different potentials are joined by metallic wire, the current starts:

Question # 25

Field lines are closer to each other in the region where the field is:

Question # 26

The magnitude of chemical Effects depends upon:

Question # 27

Thermistors are prepared under

Question # 28

The conventional current is the name given to current due to flow of

Question # 29

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

Question # 30

Most practical applications of electricity involve

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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 In case of metallic conductors, the charge carriers are
A. Protons
B. Electrons
C. Antiprotons
D. Positrons
3 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
4

When two spherical conducting balls at different potentials are joined by metallic wire, the current starts:
A.

Decreasing from zero to maximum

B.

Increasing from zero to maximum

C.

Decreasing from maximum to zero

D.

Increasing from maximum to zero
5 The value of resistivity is the least for:
A. Copper
B. Aluminimum
C. Silver
D. Tungsten
6 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
7 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
8 The value of relative permittivity of different dielectrics are:
A.

Equal

B.

Different

C.

Greater than one

D.

Smaller than one
9 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
10 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

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