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

Question # 2

The magnitude of chemical Effects depends upon:

Question # 3

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

Question # 4

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

Question # 5

Field lines are closer to each other in the region where the field is:

Question # 6

An example of photoconductor is:

Question # 7

The electric flux through any surface depends upon:

Question # 8

Which instrument is expensive and difficult to use?

Question # 9

As the current flows through the wire

Question # 10

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

Question # 11

The free electrons in metals:

Question # 12

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

Question # 13

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

Question # 14

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

Question # 15

The emf is measured in:

Question # 16

In gases, the charge carries are:

Question # 17

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

Question # 18

Gaussian surface is always:

Question # 19

Thermistors are prepared under

Question # 20

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

Question # 21

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

Question # 22

Xerography means:

Question # 23

The inkjet printer ejects a thin stream of:

Question # 24

The obvious effect/s of current is/are:

Question # 25

Most practical application of electricity involve

Question # 26

An electric field is generated along the wire when:

Question # 27

Magnetic effect of current is used:

Question # 28

Electric field lines emerge from the charge in:

Question # 29

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 # 30

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

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 The inkjet printer ejects a thin stream of:
A.

Water

B.

Oil

C.

Ink

D.

Any of above
2

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:
A.

Circle

B.

Rectangle

C.

Sphere

D.

Box
3

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

Both the conductors are at the same potential

B.

Potential difference across the conductors remain constant

C.

Potential difference across the conductors becomes zero

D.

Both (A) and (B)
4 When certain area A is held parallel to the field lines, then:
A.

No lines cross this area

B.

Maximum lines pass through this area

C.

The number of lines are between zero and maximum

D.

Both (A) and (B) correct
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

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

Thermistor

B.

Thermometer

C.

Thermostat

D.

Thermocouple
7

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

At rest

B.

At rest under the action of electric forces

C.

In motion under the action of electric forces

D.

In motion
8 Field lines are closer to each other in the region where the field is:
A.

Stronger

B.

Weaker

C.

Much weaker

D.

Absent
9 The electric flux through any surface depends upon:
A.

Intensity of electric field

B.

Area of the surface

C.

Angle between intensity and area

D.

All of these
10

The magnitude of chemical Effects depends upon:
A.

Nature of liquid

B.

Quantity of Electricity passed through the liquid

C.

Color of the liquid

D.

Both (A) and (C)

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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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