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 flux through a closed surface depends upon:

Question # 2

The free electrons in metals:

Question # 3

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

Question # 4

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

Question # 5

The charge carriers in an electrolyte are

Question # 6

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

Question # 7

The value of resistivity is the least for:

Question # 8

The third band of the colour code:

Question # 9

An electric field is generated along the wire when:

Question # 10

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

Question # 11

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

Question # 12

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

Question # 13

Electric field lines emerge from the charge in:

Question # 14

As the current flows through the wire

Question # 15

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

Question # 16

An important part of photocopier is:

Question # 17

The charge carries in the electrolyte are:

Question # 18

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

Question # 19

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:

Question # 20

The inkjet printer ejects a thin stream of:

Question # 21

The fourth band is a:

Question # 22

The magnitude of chemical Effects depends upon:

Question # 23

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

Question # 24

In a metal, the valence electrons are:

Question # 25

As the current flow through the wire:

Question # 26

A field free region is found:

Question # 27

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 # 28

In gases, the charge carries are:

Question # 29

Most practical application of electricity involve

Question # 30

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

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1

An inkjet printer uses in its operation:
A.

Neutrons only

B.

Mesons only

C.

Positrons and photons

D.

An electric charge
2 An important part of inkjet printer is:
A. Toner
B.

Drum

C.

Deflection plates

D.

Heated roles
3

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

Greater than the speed at which they pass from left to right

B.

Less than the speed at which they pass from left to right

C.

The same speed at which they pass from left to right

D.

Any of above
4 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
5 Magnetic effect of current is used:
A.

In electric motor

B.

To detect current

C.

To measure current

D.

All of these
6 A thermistor is a resistor which is:
A. Light Sensitive
B. Heat Sensitive
C. Sound Sensitive
D. All of these
7 The passage of current is accompanied by a magnetic field in the surrounding space:
A.

Always accompanied

B.

Sometimes accompanied

C.

Never accompanied

D. Any of above
8 Electric field lines emerge from the charge in:
A.

One dimension

B.

Two dimensions

C.

Three dimensions

D.

Four dimensions
9

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

Chemical energy

B.

Mechanical energy

C.

Heat energy

D.

Both (A) and (B)
10 The value of relative permittivity of different dielectrics are:
A.

Equal

B.

Different

C.

Greater than one

D.

Smaller than one

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