ECAT Pre Engineering Physics Chapter 13 MCQ Test With Answer

Question # 1

The inkjet printer ejects a thin stream of:

Water
A
Oil
B
Ink
C
Any of above
D
None of these
E

Question # 2

The electric flux through any surface depends upon:

Intensity of electric field
A
Area of the surface
B
Angle between intensity and area
C
All of these
D
None of these
E

Question # 3

Electric field lines emerge from the charge in:

One dimension
A
Two dimensions
B
Three dimensions
C
Four dimensions
D
None of them
E

Question # 4

An inkjet printer uses in its operation:

Neutrons only
A
Mesons only
B
Positrons and photons
C
An electric charge
D
None of these
E

Question # 5

In a metal, the valence electrons are:

Attached to individual atoms A
Not attached to individual atoms B
Free to move within the metal C
Both A and B D
Both A and C E

Question # 6

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

Contain some magnitude of electric field
A
Is full of electric field lines
B
Is field-free region
C
Either (A) or (B)
D
None of these
E

Question # 7

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

Greater than the speed at which they pass from left to right
A
Less than the speed at which they pass from left to right
B
The same speed at which they pass from left to right
C
Any of above
D
None of them
E

Question # 8

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

Decreasing from zero to maximum
A
Increasing from zero to maximum
B
Decreasing from maximum to zero
C
Increasing from maximum to zero
D
Both (A) and (D)
E

Question # 9

Thermistors are prepared under

High pressure and low temperature A
High pressure and high temperature B
Low pressure and low temperature C
Low pressure and high temprature D
None of these E

Question # 10

The strength of magnetic field at certain points around a wire depends upon:

Value of current passing
A
Distance from the current element
B
Color of the material
C
Both (A) and (B)
D
Both (B) and (C)
E

Question # 11

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

Stronger
A
Weaker
B
Much weaker
C
Absent
D
None of these
E

Question # 12

Tick the correct statement:

Both the potential and potential difference is scalars
A
Potential is a scalar but potential difference is a vector
B
Both are vectors
C
Potential is vector but potential difference is scalar
D
None of these
E

Question # 13

The third band of the colour code:

Gives the number of zeroes A
Is decimal multiplier B
Gives the resistance tolerance C
Gives the third digit D
Both (A) and (B) E

Question # 14

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

Greater than the speed at which they pass from left to right
A
Less than the speed at which they pass from left to right
B
The same speed at which they pass from left to right
C
Any of above
D
None of them
E

Question # 15

An important part of inkjet printer is:

Toner A
Drum
B
Deflection plates
C
Heated roles
D
None of these
E

Question # 16

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

Chemical energy
A
Mechanical energy
B
Heat energy
C
Both (A) and (B)
D
All of these
E

Question # 17

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

One coulomb A
0.5 coulomb B
30 coulombs C
2 coulombs D
None of these E

Question # 18

A thermistor is a resistor which is:

Light Sensitive A
Heat Sensitive B
Sound Sensitive C
All of these D
None of these E

Question # 19

In gases, the charge carriers are:

Electrons A
Positive ions B
Negative ions C
Both A and C D
Both A and B E

Question # 20

An electric field is generated along the wire when:

Its resistance is very high
A
A constant potential is maintained across the wire
B
Net current through the wire is zero
C
A constant potential difference is maintained across the wire
D
Either (A) or (D)
E

Question # 21

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

Decreases
A
Increases
B
Remains the constant
C
Either of these
D
None of these
E

Question # 22

In case of metallic conductors, the change carries are:

Protons
A
Electrons
B
Antiprotons
C
Positrons
D
Both (A) and (B)
E

Question # 23

In case of metallic conductors, the charge carriers are

Protons A
Electrons B
Antiprotons C
Positrons D
Both A and B E

Question # 24

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

Negative charge is moving in the same direction
A
Positive charge is moving in the opposite direction
B
Negative charge moving in the opposite direction
C
Positive charges moving in the same direction
D
None of these
E

Question # 25

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

One ampere per second A
One coulomb per second B
One electron per second C
6.25 x 10¹⁸electrons per second D
Both B and D E

Question # 26

The flux through a closed surface depends upon:

Shape of geometry of the closed surface
A
Charge enclosed
B
Nature of the medium
C
Both (A) and (B)
D
Both (B) and (C)
E

Question # 27

Aluminum is a:

Good insulator
A
Bad conductor
B
Both (A) and (B)
C
Excellent conductor
D
Semiconductor
E

Question # 28

The free electrons in metals:

Are in random motion and their speed depends upon temperature
A
Move in particular direction
B
Move with speed of light
C
Move such that their speed does not depend on their temperature
D
None of these
E

Question # 29

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

Flux in that region
A
Intensity of the field
B
Charge
C
Area of the region
D
None of these
E

Question # 30

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

Thermistor
A
Thermometer
B
Thermostat
C
Thermocouple
D
Both (C) and (D)
E

Sr.#	Question	Answer
1	Kirchhoff's first rule is also called:	A. Loop rule B. Thumb rule C. Point rule D. Right hand rule
2	An inkjet printer uses in its operation:	A. Neutrons only B. Mesons only C. Positrons and photons D. An electric charge
3	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
4	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)
5	When two spherical conducting balls at different potentials are joined by a metallic wire, after some time:	A. Both the conductors are at the same potential B. Potential difference across the conductors remain constant C. Potential difference across the conductors becomes zero D. Both (A) and (B)
6	Tick the correct statement:	A. Both the potential and potential difference is scalars B. Potential is a scalar but potential difference is a vector C. Both are vectors D. Potential is vector but potential difference is scalar
7	Conversion of chemical energy to electrical energy can be achieved by:	A. Primary cell B. Secondary cell C. Both (A) and (B) D. Photovoltaic cell
8	In gases, the charge carries are:	A. Electrons B. Positive ions C. Negative ions D. Both (A) and (C)
9	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
10	A thermistor is a resistor which is:	A. Light Sensitive B. Heat Sensitive C. Sound Sensitive D. All of these

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ECAT Pre Engineering Physics Chapter 13 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 13 Current Electricity

Physics ECAT Pre Engineering Chapter 13 Current Electricity

The inkjet printer ejects a thin stream of:

The electric flux through any surface depends upon:

Electric field lines emerge from the charge in:

An inkjet printer uses in its operation:

In a metal, the valence electrons are:

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

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

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

Thermistors are prepared under

The strength of magnetic field at certain points around a wire depends upon:

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

Tick the correct statement:

The third band of the colour code:

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

An important part of inkjet printer is:

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

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

A thermistor is a resistor which is:

In gases, the charge carriers are:

An electric field is generated along the wire when:

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

In case of metallic conductors, the change carries are:

In case of metallic conductors, the charge carriers are

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

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

The flux through a closed surface depends upon:

Aluminum is a:

The free electrons in metals:

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

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

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