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 quantity having the same unit as that of emf is:

Question # 2

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 # 3

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

Question # 4

Most practical application of electricity involve

Question # 5

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

Question # 6

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

Question # 7

The third band of the colour code:

Question # 8

Thermistors are prepared under

Question # 9

As the current flows through the wire

Question # 10

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

Question # 11

A rheostat can e used:

Question # 12

An electric field is generated along the wire when:

Question # 13

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

Question # 14

Kirchhoff's first rule is also called:

Question # 15

Magnetic effect of current is used:

Question # 16

The fourth band is a:

Question # 17

Tick the correct statement:

Question # 18

In case of metallic conductors, the charge carriers are

Question # 19

In case of metallic conductors, the charge carriers are

Question # 20

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

Question # 21

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

Question # 22

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

Question # 23

The magnitude of chemical Effects depends upon:

Question # 24

The emf is measured in:

Question # 25

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

Question # 26

Most practical applications of electricity involve

Question # 27

The electric flux through any surface depends upon:

Question # 28

Xerography means:

Question # 29

Aluminum is a:

Question # 30

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

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 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
2 SI unit of current describes the flow of charge at the rate of
A. One ampere per second
B. One coulomb per second
C. One electron per second
D. 6.25 x 1018electrons per second
3

Electric flux is:
A. Cross product of two vector

B.

Dot product of two vectors

C.

A vector quantity

D.

A scalar quantity
4 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
5 The value of resistivity is the least for:
A. Copper
B. Aluminimum
C. Silver
D. Tungsten
6 In gases, the charge carriers are:
A. Electrons
B. Positive ions
C. Negative ions
D. Both A and C
7 Magnetic effect of current is used:
A.

In electric motor

B.

To detect current

C.

To measure current

D.

All of these
8

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
9 Static electricity is produced by the transfer of:
A.

Electrons

B.

Protons

C.

One fluid

D.

Two fluids
10 Field lines are closer to each other in the region where the field is:
A.

Stronger

B.

Weaker

C.

Much weaker

D.

Absent

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