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

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

Question # 2

The charge carriers in an electrolyte are

Question # 3

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

Question # 4

A thermistor is a resistor which is:

Question # 5

Which of the following substances has got positive temperature coefficient of resistance?

Question # 6

An important part of inkjet printer is:

Question # 7

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

Question # 8

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

Question # 9

The electric flux through any surface depends upon:

Question # 10

The free electrons in metals:

Question # 11

Most practical application of electricity involve

Question # 12

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

Question # 13

Electric field lines emerge from the charge in:

Question # 14

A rheostat can e used:

Question # 15

In gases, the charge carries are:

Question # 16

An electric field is generated along the wire when:

Question # 17

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

Question # 18

In gases, the charge carriers are:

Question # 19

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

Question # 20

In a metal, the valence electrons are:

Question # 21

The inkjet printer ejects a thin stream of:

Question # 22

Thermistors are prepared under

Question # 23

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

Question # 24

In case of metallic conductors, the charge carriers are

Question # 25

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

Question # 26

Selenium is:

Question # 27

An example of photoconductor is:

Question # 28

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

Question # 29

The fourth band is a:

Question # 30

The best conductor is:

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1

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:
A.

Same

B.

Different

C.

Opposite to each other

D.

At 60º with each other
2 Electric field lines emerge from the charge in:
A.

One dimension

B.

Two dimensions

C.

Three dimensions

D.

Four dimensions
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

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

Zero

B.

Much larger

C.

Larger

D.

Smaller
5 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
6 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
7

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

Greater than the speed at which they pass from left to right

B.

Less than the speed at which they pass from left to right

C.

The same speed at which they pass from left to right

D.

Any of above
8 The term drift velocity is used when the ends of a wire are:
A.

Connected to a laser source

B.

Connected to a voltage source

C.

Not connected to a voltage source

D.

At different values of potential
9

When two spherical conducting balls at different potentials are joined by metallic wire, the current starts:
A.

Decreasing from zero to maximum

B.

Increasing from zero to maximum

C.

Decreasing from maximum to zero

D.

Increasing from maximum to zero
10 The emf is measured in:
A. Newton
B. Volt
C. J/C
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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