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 electric flux through any surface depends upon:

Question # 2

The best conductor is:

Question # 3

Xerography means:

Question # 4

An eV is unit of:

Question # 5

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

Question # 6

The value of resistivity is the least for:

Question # 7

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

Question # 8

The emf is measured in:

Question # 9

A rheostat can e used:

Question # 10

A thermistor is a resistor which is:

Question # 11

Kirchhoff's first rule is also called:

Question # 12

Aluminum is a:

Question # 13

The surface destiny of charge is defined is:

Question # 14

Most practical applications of electricity involve

Question # 15

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

Question # 16

Thermistors are prepared under

Question # 17

In case of metallic conductors, the change carries are:

Question # 18

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

Question # 19

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 # 20

An electric field is generated along the wire when:

Question # 21

The third band of the colour code:

Question # 22

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

Question # 23

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

Question # 24

Electrolysis is the study of conduction of electricity through:

Question # 25

In gases, the charge carriers are:

Question # 26

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

Question # 27

Selenium is:

Question # 28

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

Question # 29

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

Question # 30

The charge carries in the electrolyte are:

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 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)
2

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

Different

B.

Same

C.

Such that it is greater in the first case

D.

Such that it is greater in the second case
3

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

Always accompanied

B.

Sometimes accompanied

C.

Never accompanied

D. Any of above
5

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
6 An important part of photocopier is:
A.

Toner cartridge

B. Deflection plates

C.

Charging electrode

D.

Print head
7 Most practical applications of electricity involve
A. Charges at rest
B. Charges in motion
C. Electrons at rest
D. Atoms in motion
8 An example of photoconductor is:
A.

Boron

B.

Carbon

C.

Iron

D.

Aluminum
9 The inkjet printer ejects a thin stream of:
A.

Water

B.

Oil

C.

Ink

D.

Any of above
10 Magnetic effect of current is used:
A.

In electric motor

B.

To detect current

C.

To measure current

D.

All of these

Test Questions