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

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

Question # 2

The value of resistivity is the least for:

Question # 3

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 # 4

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

Question # 5

The charge carriers in an electrolyte are

Question # 6

In case of metallic conductors, the charge carriers are

Question # 7

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

Question # 8

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

Question # 9

Electric flux is:

Question # 10

An inkjet printer uses in its operation:

Question # 11

In a metal, the valence electrons are:

Question # 12

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

Question # 13

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

Question # 14

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 # 15

Electrolysis is the study of conduction of electricity through:

Question # 16

In a metal, the valence electrons are:

Question # 17

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

Question # 18

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

Question # 19

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

Question # 20

Gaussian surface is always:

Question # 21

An important part of photocopier is:

Question # 22

The free electrons in metals:

Question # 23

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

Question # 24

The fourth band is a:

Question # 25

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

Question # 26

In case of metallic conductors, the change carries are:

Question # 27

Aluminum is a:

Question # 28

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

Question # 29

Kirchhoff's first rule is also called:

Question # 30

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

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1

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

Its shaft to revolve

B.

Its brushes to rotate

C.

Motor to move

D.

Its shafts to rotate
2 A thermistor is a resistor which is:
A. Light Sensitive
B. Heat Sensitive
C. Sound Sensitive
D. All of these
3 In gases, the charge carries are:
A.

Electrons

B.

Positive ions

C.

Negative ions

D.

Both (A) and (C)
4

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

Zero

B.

Much larger

C.

Larger

D.

Smaller
5 As the current flows through the wire
A. It generates heat in the wire
B. It produces sound in the wire
C. Resistance of the wire decrease
D. Voltage across the ends is the increase
6 If the ends of a wire are connected to a battery an electric field E will be set up at:
A.

The ends of the wire only

B.

Mid points of the wire only

C.

Every point within the wire

D.

At nodes only
7 In case of metallic conductors, the charge carriers are
A. Protons
B. Electrons
C. Antiprotons
D. Positrons
8 In gases, the charge carriers are:
A. Electrons
B. Positive ions
C. Negative ions
D. Both A and C
9

Electric flux is:
A. Cross product of two vector

B.

Dot product of two vectors

C.

A vector quantity

D.

A scalar quantity
10 The flux through a closed surface depends upon:
A.

Shape of geometry of the closed surface

B.

Charge enclosed

C.

Nature of the medium

D.

Both (A) and (B)

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  • Hamza

    Hamza

    17 Aug 2019

    It has many error

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  • Salmankhan

    Salmankhan

    02 Feb 2018

    Sir g plz correct this mcq the device which convert electrical into machinical is called moter but here the answer is generator

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