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

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

Question # 2

A rheostat can e used:

Question # 3

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

Question # 4

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

Question # 5

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

Question # 6

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

Question # 7

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 # 8

A field free region is found:

Question # 9

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

Question # 10

Flux through a closed surface of any shape and flux through the surface of a sphere drawn around a charge are:

Question # 11

A thermistor is a resistor which is:

Question # 12

The best conductor is:

Question # 13

An important part of inkjet printer is:

Question # 14

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

Question # 15

In a metal, the valence electrons are:

Question # 16

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

Question # 17

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

Question # 18

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

Question # 19

An inkjet printer uses in its operation:

Question # 20

The charge carriers in an electrolyte are

Question # 21

As the current flows through the wire

Question # 22

Most practical application of electricity involve

Question # 23

Kirchhoff's first rule is also called:

Question # 24

The current that flows through the coil of a motor causes

Question # 25

The value of relative permittivity of different dielectrics are:

Question # 26

Aluminum is a:

Question # 27

In gases, the charge carries are:

Question # 28

The free electrons in metals:

Question # 29

Xerography means:

Question # 30

Two dissimilar metals joined at their ends kept at constant temperature constitute:

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 Xerography means:
A.

Dry writing

B. Wet writing

C.

Poor writing

D.

Excellent writing
2 Gaussian surface is always:
A.

Rectangular

B.

Spherical

C.

Cylindrical

D.

Box shape
3 The inkjet printer ejects a thin stream of:
A.

Water

B.

Oil

C.

Ink

D.

Any of above
4 An electric field is generated along the wire when:
A.

Its resistance is very high

B.

A constant potential is maintained across the wire

C.

Net current through the wire is zero

D.

A constant potential difference is maintained across the wire
5 A rheostat can e used:
A. As variable resistor
B. As potential divider
C. For varying the current
D. All of these
6 The positive charge moving in one direction is equivalent in all external affects to a:
A.

Negative charge is moving in the same direction

B.

Positive charge is moving in the opposite direction

C.

Negative charge moving in the opposite direction

D.

Positive charges moving in the same direction
7 Field lines are closer to each other in the region where the field is:
A.

Stronger

B.

Weaker

C.

Much weaker

D.

Absent
8 In case of metallic conductors, the charge carriers are
A. Protons
B. Electrons
C. Antiprotons
D. Positrons
9 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
10 The fourth band is a:
A. Silver band
B. Red band
C. Gold band
D. Either A or C

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