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

Electrolysis is the study of conduction of electricity through:

Question # 2

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

Question # 3

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

Question # 4

An inkjet printer uses in its operation:

Question # 5

The current that flows through the coil of a motor causes

Question # 6

The free electrons in metals:

Question # 7

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

Question # 8

Magnetic effect of current is used:

Question # 9

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

Question # 10

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

Question # 11

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

Question # 12

Static electricity is produced by the transfer of:

Question # 13

An important part of photocopier is:

Question # 14

An eV is unit of:

Question # 15

An example of photoconductor is:

Question # 16

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

Question # 17

An ideal voltmeter has:

Question # 18

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

Question # 19

The obvious effect/s of current is/are:

Question # 20

Heating effect of current utilized in:

Question # 21

The best conductor is:

Question # 22

Which instrument is expensive and difficult to use?

Question # 23

The value of relative permittivity of different dielectrics are:

Question # 24

The term drift velocity is used when the ends of a wire are:

Question # 25

In case of metallic conductors, the change carries are:

Question # 26

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

Question # 27

In gases, the charge carriers are:

Question # 28

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

Question # 29

Electrostatics is the branch of physics which deals with the study of electro charges:

Question # 30

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

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 The third band of the colour code:
A. Gives the number of zeroes
B. Is decimal multiplier
C. Gives the resistance tolerance
D. Gives the third digit
2 The number of field lines passing through unit area held perpendicular to the field lines represent:
A.

Flux in that region

B.

Intensity of the field

C.

Charge

D.

Area of the region
3 The fourth band is a:
A. Silver band
B. Red band
C. Gold band
D. Either A or C
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 Another mean of electric potential energy per unit charge is given by:
A.

Electric intensity

B.

Potential gradient

C.

Electric Flux

D.

Potential difference
6 In a metal, the valence electrons are:
A.

Attach to individual atoms

B.

Not attached to individual atoms

C.

Free to move within the metal

D.

Both (A) and (C)
7

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)
8 A thermistor is a resistor which is:
A. Light Sensitive
B. Heat Sensitive
C. Sound Sensitive
D. All of these
9 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
10

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

Test Questions

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  • Hamza

    Hamza

    17 Aug 2019

    It has many error

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  • Salmankhan

    Salmankhan

    02 Feb 2018

    Sir g plz correct this mcq the device which convert electrical into machinical is called moter but here the answer is generator

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