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

00:00
Question # 1

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

Question # 2

Most practical application of electricity involve

Question # 3

An eV is unit of:

Question # 4

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

Question # 5

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

Question # 6

A field free region is found:

Question # 7

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

Question # 8

The surface destiny of charge is defined is:

Question # 9

The charge carries in the electrolyte are:

Question # 10

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

Question # 11

In a metal, the valence electrons are:

Question # 12

Selenium is:

Question # 13

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

Question # 14

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

Question # 15

Tick the correct statement:

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1

Heating effect of current utilized in:
A.

Electric motor

B.

Electric toaster

C.

Electroplating

D.

Electric kettle
2 An eV is unit of:
A.

Potential

B.

Energy

C.

Work

D.

Power
3

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

Zero

B.

Much larger

C.

Larger

D.

Smaller
4

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

Its shaft to revolve

B.

Its brushes to rotate

C.

Motor to move

D.

Its shafts to rotate
5 The emf is measured in:
A. Newton
B. Volt
C. J/C
D. Both A and B
6 Selenium is:
A.

An insulator

B.

A conductor

C.

Insulator in the dark and becomes conductor when exposed to light

D.

Conductor in the dark only
7 Aluminum is a:
A.

Good insulator

B.

Bad conductor

C.

Both (A) and (B)

D.

Excellent conductor
8 An electric field is generated along the wire when:
A.

Its resistance is very high

B.

A constant potential is maintained across the wire

C.

Net current through the wire is zero

D.

A constant potential difference is maintained across the wire
9 SI unit of current describes the flow of charge at the rate of
A. One ampere per second
B. One coulomb per second
C. One electron per second
D. 6.25 x 1018electrons per second
10

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

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