ECAT Pre Computer Science Chapter 13 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 13 Current Electricity

Try The MCQ's Test For ECAT Physics Chapter 13 Current Electricity

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ECAT Physics Chapter 13 Current Electricity

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Question # 1

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

Question # 2

Heating effect of current utilized in:

Question # 3

When certain area A is held parallel to the field lines, then:

Question # 4

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

Question # 5

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

Question # 6

The inkjet printer ejects a thin stream of:

Question # 7

SI unit of current describes the flow of charge at the rate of

Question # 8

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

Question # 9

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

Question # 10

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

Question # 11

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

Question # 12

As the current flow through the wire:

Question # 13

The current that flows through the coil of a motor causes:

Question # 14

Gaussian surface is always:

Question # 15

In a metal, the valence electrons are:

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 The value of resistivity is the least for:
A. Copper
B. Aluminimum
C. Silver
D. Tungsten
2 Aluminum is a:
A.

Good insulator

B.

Bad conductor

C.

Both (A) and (B)

D.

Excellent conductor
3 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)
4 If the ends of a wire are connected to a battery an electric field E will be set up at:
A.

The ends of the wire only

B.

Mid points of the wire only

C.

Every point within the wire

D.

At nodes only
5 An example of photoconductor is:
A.

Boron

B.

Carbon

C.

Iron

D.

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

Water

B.

Oil

C.

Ink

D.

Any of above
7

The charge carries in the electrolyte are:
A.

Positive ions

B.

Negative ions

C.

Either (A) or (B)

D.

Both (A) and (B)
8 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
9

Heating effect of current utilized in:
A.

Electric motor

B.

Electric toaster

C.

Electroplating

D.

Electric kettle
10 The free electrons in metals:
A.

Are in random motion and their speed depends upon temperature

B.

Move in particular direction

C.

Move with speed of light

D.

Move such that their speed does not depend on their temperature

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