ECAT Pre General Science Physics Chapter 13 MCQ Test With Answer

MCQ's Test For ECAT Pre General Science Physics Chapter 13 Current Electricity

Try The MCQ's Test For ECAT Pre General Science Physics Chapter 13 Current Electricity

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ECAT Pre General Science Physics Chapter 13 Current Electricity

00:00
Question # 1

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

Question # 2

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

Question # 3

In case of metallic conductors, the change carries are:

Question # 4

Kirchhoff's first rule is also called:

Question # 5

The free electrons in metals:

Question # 6

Electric field lines emerge from the charge in:

Question # 7

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

Question # 8

Magnetic effect of current is used:

Question # 9

An important part of photocopier is:

Question # 10

Thermistors are prepared under

Question # 11

The current that flows through the coil of a motor causes

Question # 12

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 # 13

The best conductor is:

Question # 14

An example of photoconductor is:

Question # 15

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

Question # 16

Tick the correct statement:

Question # 17

Xerography means:

Question # 18

In case of two identical charges placed certain distance apart, the electric field lines are:

Question # 19

The third band of the colour code:

Question # 20

In case of metallic conductors, the charge carriers are

Question # 21

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

Question # 22

An eV is unit of:

Question # 23

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

Question # 24

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

Question # 25

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

Question # 26

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

Question # 27

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

Question # 28

Heating effect of current utilized in:

Question # 29

A field free region is found:

Question # 30

The obvious effect/s of current is/are:

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 In gases, the charge carriers are:
A. Electrons
B. Positive ions
C. Negative ions
D. Both A and C
2 The value of relative permittivity of different dielectrics are:
A.

Equal

B.

Different

C.

Greater than one

D.

Smaller than one
3 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
4 In case of metallic conductors, the charge carriers are
A. Protons
B. Electrons
C. Antiprotons
D. Positrons
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 The value of resistivity is the least for:
A. Copper
B. Aluminimum
C. Silver
D. Tungsten
7

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)
8 The charge carriers in an electrolyte are
A. Positive ions
B. Negative ions
C. Either A or B
D. Both A and B
9 Which of the following substances has got positive temperature coefficient of resistance?
A. Carbon
B. Germanium
C. Silicon
D. Aluminium
10 A rheostat can e used:
A. As variable resistor
B. As potential divider
C. For varying the current
D. All of these

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