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

In a metal, the valence electrons are:

Question # 2

The surface destiny of charge is defined is:

Question # 3

An example of photoconductor is:

Question # 4

In gases, the charge carriers are:

Question # 5

The free electrons in metals:

Question # 6

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

Question # 7

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

Question # 8

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

Question # 9

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

Question # 10

Most practical application of electricity involve

Question # 11

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

Question # 12

The best conductor is:

Question # 13

The current that flows through the coil of a motor causes

Question # 14

Thermistors are prepared under

Question # 15

An important part of inkjet printer is:

Question # 16

In case of metallic conductors, the change carries are:

Question # 17

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

Question # 18

An electric field is generated along the wire when:

Question # 19

Which instrument is expensive and difficult to use?

Question # 20

In case of metallic conductors, the charge carriers are

Question # 21

The electric flux through any surface depends upon:

Question # 22

Electric field lines emerge from the charge in:

Question # 23

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

Question # 24

The positive charge moving in one direction is equivalent in all external affects to a:

Question # 25

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

Question # 26

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

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 magnitude of chemical Effects depends upon:

Question # 29

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

Question # 30

The value of resistivity is the least for:

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 Static electricity is produced by the transfer of:
A.

Electrons

B.

Protons

C.

One fluid

D.

Two fluids
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 In gases, the charge carries are:
A.

Electrons

B.

Positive ions

C.

Negative ions

D.

Both (A) and (C)
4 A thermistor is a resistor which is:
A. Light Sensitive
B. Heat Sensitive
C. Sound Sensitive
D. All of these
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 A field free region is found:
A.

Near the outer surface of a hollow charged metal sphere

B.

In the interior of solid metal uncharged sphere

C.

In the interior of solid metal charged sphere

D.

Both (A) and (B)
7

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

Decreases

B.

Increases

C.

Remains the constant

D.

Either of these
9 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
10 Field lines are closer to each other in the region where the field is:
A.

Stronger

B.

Weaker

C.

Much weaker

D.

Absent

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