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 case of metallic conductors, the charge carriers are

Question # 2

The value of resistivity is the least for:

Question # 3

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

Question # 4

Electrolysis is the study of conduction of electricity through:

Question # 5

In case of two identical charges placed certain distance apart, the electric field lines are:

Question # 6

The charge carriers in an electrolyte are

Question # 7

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

Question # 8

Magnetic effect of current is used:

Question # 9

The emf is measured in:

Question # 10

A field free region is found:

Question # 11

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

Question # 12

An eV is unit of:

Question # 13

Xerography means:

Question # 14

The conventional current is the name given to current due to flow of

Question # 15

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

Question # 16

The interior of a hollow charged metal sphere is a region which:

Question # 17

The charge carries in the electrolyte are:

Question # 18

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

Question # 19

Electric field lines emerge from the charge in:

Question # 20

Tick the correct statement:

Question # 21

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

Question # 22

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

Question # 23

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

Question # 24

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

Question # 25

The inkjet printer ejects a thin stream of:

Question # 26

Electric flux is:

Question # 27

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

Question # 28

The surface destiny of charge is defined is:

Question # 29

The third band of the colour code:

Question # 30

The electric flux through any surface depends upon:

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1

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

Decreasing from zero to maximum

B.

Increasing from zero to maximum

C.

Decreasing from maximum to zero

D.

Increasing from maximum to zero
2 Most practical applications of electricity involve
A. Charges at rest
B. Charges in motion
C. Electrons at rest
D. Atoms in motion
3 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
4 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
5 The value of resistivity is the least for:
A. Copper
B. Aluminimum
C. Silver
D. Tungsten
6 The quantity having the same unit as that of emf is:
A. Force
B. Energy
C. Potential
D. Current
7

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

Thermistor

B.

Thermometer

C.

Thermostat

D.

Thermocouple
8

In case of two identical charges placed certain distance apart, the electric field lines are:
A.

Straight lines

B.

Sine curves

C.

Curved

D.

Both (A) and (B)
9 Which instrument is expensive and difficult to use?
A. Voltmeter
B. Potentiometer
C. CRO
D. Both A and C
10

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

One coulomb

B.

0.5 coulomb

C.

30 coulomb

D.

2 coulombs

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