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

The third band of the colour code:

Question # 2

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

Question # 3

Which instrument is expensive and difficult to use?

Question # 4

In case of metallic conductors, the change carries are:

Question # 5

An electric field is generated along the wire when:

Question # 6

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

Question # 7

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

Question # 8

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

Question # 9

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

Question # 10

A field free region is found:

Question # 11

The free electrons in metals:

Question # 12

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

Question # 13

The emf is measured in:

Question # 14

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

Question # 15

Conversion of chemical energy to electrical energy can be achieved by:

Question # 16

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

Question # 17

In a metal, the valence electrons are:

Question # 18

An example of photoconductor is:

Question # 19

Most practical applications of electricity involve

Question # 20

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

Question # 21

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

Question # 22

Xerography means:

Question # 23

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 # 24

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

Question # 25

If the ends of a wire are connected to a battery an electric field E will be set up at:

Question # 26

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

Question # 27

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

Question # 28

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

Question # 29

Tick the correct statement:

Question # 30

The flux through a closed surface depends upon:

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 As the current flow through the wire:
A.

It generates heat in the wire

B.

It produces sound in the wire

C.

Resistance of the wire decreases

D.

Voltage across the ends is increased
2

Conversion of chemical energy to electrical energy can be achieved by:
A.

Primary cell

B.

Secondary cell

C.

Both (A) and (B)

D.

Photovoltaic cell
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 The conventional current is the name given to current due to flow of
A. Positrons
B. Positive charges
C. Negative charges
D. Both A and C
5

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

Different

B.

Same

C.

Such that it is greater in the first case

D.

Such that it is greater in the second case
6

The magnitude of chemical Effects depends upon:
A.

Nature of liquid

B.

Quantity of Electricity passed through the liquid

C.

Color of the liquid

D.

Both (A) and (C)
7 An important part of photocopier is:
A.

Toner cartridge

B. Deflection plates

C.

Charging electrode

D.

Print head
8 In case of metallic conductors, the charge carriers are
A. Protons
B. Electrons
C. Antiprotons
D. Positrons
9

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
10 The charge carriers in an electrolyte are
A. Positive ions
B. Negative ions
C. Either A or B
D. Both A and B

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