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 emf is measured in:

Question # 2

Most practical applications of electricity involve

Question # 3

A field free region is found:

Question # 4

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

Question # 5

An important part of photocopier is:

Question # 6

The flux through a closed surface depends upon:

Question # 7

In gases, the charge carriers are:

Question # 8

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 # 9

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

Question # 10

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

Question # 11

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

Question # 12

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

Question # 13

The best conductor is:

Question # 14

The electric flux through any surface depends upon:

Question # 15

An ideal voltmeter has:

Question # 16

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

Question # 17

In case of metallic conductors, the charge carriers are

Question # 18

In a metal, the valence electrons are:

Question # 19

Xerography means:

Question # 20

The charge carriers in an electrolyte are

Question # 21

Static electricity is produced by the transfer of:

Question # 22

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

Question # 23

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

Question # 24

An example of photoconductor is:

Question # 25

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

Question # 26

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

Question # 27

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

Question # 28

A thermistor is a resistor which is:

Question # 29

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

Question # 30

Magnetic effect of current is used:

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 The inkjet printer ejects a thin stream of:
A.

Water

B.

Oil

C.

Ink

D.

Any of above
2 Gaussian surface is always:
A.

Rectangular

B.

Spherical

C.

Cylindrical

D.

Box shape
3 Electric field lines emerge from the charge in:
A.

One dimension

B.

Two dimensions

C.

Three dimensions

D.

Four dimensions
4 An example of photoconductor is:
A.

Boron

B.

Carbon

C.

Iron

D.

Aluminum
5 Electrolysis is the study of conduction of electricity through:
A. Solids
B. Liquids
C. Gases
D. Plasma
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 Thermistors are prepared under
A. High pressure and low temperature
B. High pressure and high temperature
C. Low pressure and low temperature
D. Low pressure and high temprature
8 A rheostat can e used:
A. As variable resistor
B. As potential divider
C. For varying the current
D. All of these
9 The best conductor is:
A. Silver
B. Copper
C. Aluminimum
D. Both B and C
10 The free electrons in metals:
A.

Are in random motion and their speed depends upon temperature

B.

Move in particular direction

C.

Move with speed of light

D.

Move such that their speed does not depend on their temperature

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