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

Question # 2

Which of the following substances has got positive temperature coefficient of resistance?

Question # 3

Tick the correct statement:

Question # 4

The best conductor is:

Question # 5

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

Question # 6

Which instrument is expensive and difficult to use?

Question # 7

An example of photoconductor is:

Question # 8

Electrostatics is the branch of physics which deals with the study of electro charges:

Question # 9

Most practical applications of electricity involve

Question # 10

The charge carries in the electrolyte are:

Question # 11

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

Question # 12

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

Question # 13

A thermistor is a resistor which is:

Question # 14

A field free region is found:

Question # 15

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

Question # 16

The inkjet printer ejects a thin stream of:

Question # 17

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

Question # 18

The term drift velocity is used when the ends of a wire are:

Question # 19

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

Question # 20

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

Question # 21

The earth’s potential and potential at infinity are taken:

Question # 22

The current that flows through the coil of a motor causes

Question # 23

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

Question # 24

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

Question # 25

Aluminum is a:

Question # 26

Xerography means:

Question # 27

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

Question # 28

In a metal, the valence electrons are:

Question # 29

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

Question # 30

The surface destiny of charge is defined is:

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1

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)
2 The electric flux through any surface depends upon:
A.

Intensity of electric field

B.

Area of the surface

C.

Angle between intensity and area

D.

All of these
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 Another mean of electric potential energy per unit charge is given by:
A.

Electric intensity

B.

Potential gradient

C.

Electric Flux

D.

Potential difference
5

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

One coulomb

B.

0.5 coulomb

C.

30 coulomb

D.

2 coulombs
6 When certain area A is held parallel to the field lines, then:
A.

No lines cross this area

B.

Maximum lines pass through this area

C.

The number of lines are between zero and maximum

D.

Both (A) and (B) correct
7 The charge carriers in an electrolyte are
A. Positive ions
B. Negative ions
C. Either A or B
D. Both A and B
8 When resistance of a current carrying wire increases due to rise in temperature, the drift velocity of electrons:
A.

Decreases

B.

Increases

C.

Remains the constant

D.

Either of these
9 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
10 The earth’s potential and potential at infinity are taken:
A.

Equal

B.

Zero

C.

First is greater than the second

D.

Second is greater than the first

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