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

Electric flux is:

Question # 2

The best conductor is:

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

In a metal, the valence electrons are:

Question # 5

The flux through a closed surface depends upon:

Question # 6

In a metal, the valence electrons are:

Question # 7

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

Question # 8

A rheostat can e used:

Question # 9

The current that flows through the coil of a motor causes

Question # 10

Xerography means:

Question # 11

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

Question # 12

The magnitude of chemical Effects depends upon:

Question # 13

An electric field is generated along the wire when:

Question # 14

Static electricity is produced by the transfer of:

Question # 15

Magnetic effect of current is used:

Question # 16

The free electrons in metals:

Question # 17

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

Question # 18

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

Question # 19

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

Question # 20

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

Question # 21

An important part of photocopier is:

Question # 22

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

Question # 23

An important part of inkjet printer is:

Question # 24

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

Question # 25

A thermistor is a resistor which is:

Question # 26

Selenium is:

Question # 27

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

Question # 28

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

Question # 29

A field free region is found:

Question # 30

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

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 SI unit of current describes the flow of charge at the rate of
A. One ampere per second
B. One coulomb per second
C. One electron per second
D. 6.25 x 1018electrons per second
2 The charge carriers in an electrolyte are
A. Positive ions
B. Negative ions
C. Either A or B
D. Both A and B
3 When a constant potential difference is applied across the conductor, the drift velocity of electrons:
A.

Increases

B.

Decreases

C.

Remains the constant

D.

Either of these
4 An important part of photocopier is:
A.

Toner cartridge

B. Deflection plates

C.

Charging electrode

D.

Print head
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 Electrolysis is the study of conduction of electricity through:
A. Solids
B. Liquids
C. Gases
D. Plasma
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 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
9 The interior of a hollow charged metal sphere is a region which:
A.

Contain some magnitude of electric field

B.

Is full of electric field lines

C.

Is field-free region

D.

Either (A) or (B)
10

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

Straight lines

B.

Sine curves

C.

Curved

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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