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

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Question # 1

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

Question # 2

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

Question # 3

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

Question # 4

In a metal, the valence electrons are:

Question # 5

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

Question # 6

The free electrons in metals:

Question # 7

As the current flow through the wire:

Question # 8

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

Question # 9

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

Question # 10

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

Question # 11

Aluminum is a:

Question # 12

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

Question # 13

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

Question # 14

Most practical applications of electricity involve

Question # 15

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

Question # 16

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

Question # 17

An example of photoconductor is:

Question # 18

An ideal voltmeter has:

Question # 19

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

Question # 20

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

Question # 21

The electric flux through any surface depends upon:

Question # 22

The flux through a closed surface depends upon:

Question # 23

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

Question # 24

Static electricity is produced by the transfer of:

Question # 25

Electric field lines emerge from the charge in:

Question # 26

Magnetic effect of current is used:

Question # 27

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

Question # 28

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

Question # 29

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

Question # 30

In gases, the charge carries are:

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1

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:
A.

Same

B.

Different

C.

Opposite to each other

D.

At 60º with each other
2 A current of 1 ampere is passing through a conductor. The charge passing through it in half a minute s
A. One coulomb
B. 0.5 coulomb
C. 30 coulombs
D. 2 coulombs
3 The emf is measured in:
A. Newton
B. Volt
C. J/C
D. Both A and B
4 Field lines are closer to each other in the region where the field is:
A.

Stronger

B.

Weaker

C.

Much weaker

D.

Absent
5 The value of resistivity is the least for:
A. Copper
B. Aluminimum
C. Silver
D. Tungsten
6 A field free region is found:
A.

Near the outer surface of a hollow charged metal sphere

B.

In the interior of solid metal uncharged sphere

C.

In the interior of solid metal charged sphere

D.

Both (A) and (B)
7 In case of metallic conductors, the charge carriers are
A. Protons
B. Electrons
C. Antiprotons
D. Positrons
8

Heating effect of current utilized in:
A.

Electric motor

B.

Electric toaster

C.

Electroplating

D.

Electric kettle
9 Most practical applications of electricity involve
A. Charges at rest
B. Charges in motion
C. Electrons at rest
D. Atoms in motion
10 An ideal voltmeter has:
A. Zero resistance
B. Small resistance
C. Large resistance
D. Infinite resistance

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