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

Thermistors are prepared under

Question # 2

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

Question # 3

As the current flows through the wire

Question # 4

The obvious effect/s of current is/are:

Question # 5

The flux through a closed surface depends upon:

Question # 6

Kirchhoff's first rule is also called:

Question # 7

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

Question # 8

The charge carries in the electrolyte are:

Question # 9

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

Question # 10

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

Question # 11

The value of relative permittivity of different dielectrics are:

Question # 12

An important part of photocopier is:

Question # 13

Tick the correct statement:

Question # 14

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

Question # 15

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

Question # 16

Which instrument is expensive and difficult to use?

Question # 17

Most practical applications of electricity involve

Question # 18

An electric field is generated along the wire when:

Question # 19

The best conductor is:

Question # 20

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

Question # 21

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

Question # 22

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

Question # 23

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

Question # 24

The fourth band is a:

Question # 25

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 # 26

Magnetic effect of current is used:

Question # 27

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

Question # 28

The free electrons in metals:

Question # 29

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

Question # 30

Xerography means:

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1

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

Be zero

B.

Be maintained constant

C.

Goes on increasing

D.

Go on decreasing
2 An ideal voltmeter has:
A. Zero resistance
B. Small resistance
C. Large resistance
D. Infinite resistance
3 Selenium is:
A.

An insulator

B.

A conductor

C.

Insulator in the dark and becomes conductor when exposed to light

D.

Conductor in the dark only
4

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

Primary cell

B.

Secondary cell

C.

Both (A) and (B)

D.

Photovoltaic cell
5

In case of metallic conductors, the change carries are:
A.

Protons

B.

Electrons

C.

Antiprotons

D.

Positrons
6 The conventional current is the name given to current due to flow of:
A. Positrons
B.

Positive charges

C.

Negative charges

D.

Both (A) and (C)
7 Kirchhoff's first rule is also called:
A. Loop rule
B. Thumb rule
C. Point rule
D. Right hand rule
8 The number of field lines passing through unit area held perpendicular to the field lines represent:
A.

Flux in that region

B.

Intensity of the field

C.

Charge

D.

Area of the region
9 The value of resistivity is the least for:
A. Copper
B. Aluminimum
C. Silver
D. Tungsten
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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