ECAT Pre General Science Chapter 13 online mcq test with answers for Physics chapter 13 (Current Electricity)

Question # 1

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 # 2

The value of relative permittivity of different dielectrics are:

Equal
A
Different
B
Greater than one
C
Smaller than one
D
Both (B) and (C)
E

Question # 3

The charge carries in the electrolyte are:

Positive ions
A
Negative ions
B
Either (A) or (B)
C
Both (A) and (B)
D
Neither (A) nor (B)
E

Question # 4

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 # 5

Electrolysis is the study of conduction of electricity through:

Solids A
Liquids B
Gases C
Plasma D

Question # 6

Certain charge +q is placed at the center of a sphere. At each of the sphere,The directions of electric intensity and vector area are:

Same
A
Different
B
Opposite to each other
C
At 60º with each other
D
Both (B) and (C)
E

Question # 7

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 # 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

Static electricity is produced by the transfer of:

Electrons
A
Protons
B
One fluid
C
Two fluids
D
None of these
E

Question # 10

An eV is unit of:

Potential
A
Energy
B
Work
C
Power
D
Both (B) and(C)
E

Question # 11

Flux through a closed surface of any shape and flux through the surface of a sphere drawn around a charge are:

Different
A
Same
B
Such that it is greater in the first case
C
Such that it is greater in the second case
D
None of these
E

Question # 12

The obvious effect/s of current is/are:

Heating effect
A
Magnetic effect
B
Chemical effect
C
Both (C) and (B)
D
All of these
E

Question # 13

The earth’s potential and potential at infinity are taken:

Equal
A
Zero
B
First is greater than the second
C
Second is greater than the first
D
Both (A) and (B)
E

Question # 14

The best conductor is:

Silver A
Copper B
Aluminimum C
Both B and C D
None of them E

Question # 15

The magnitude of chemical Effects depends upon:

Nature of liquid
A
Quantity of Electricity passed through the liquid
B
Color of the liquid
C
Both (A) and (C)
D
Both (A) and (B)
E

Question # 16

The inkjet printer ejects a thin stream of:

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

Question # 17

The emf is measured in:

Newton A
Volt B
J/C C
Both A and B D
Both B and C E

Question # 18

Aluminum is a:

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

Question # 19

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 # 20

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

Straight lines
A
Sine curves
B
Curved
C
Both (A) and (B)
D
None of these
E

Question # 21

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

Positrons A
Positive charges B
Negative charges C
Both A and C D
None of these E

Question # 22

While finding the electric intensity at a point between two oppositely charged parallel plates, the Gaussian surface is taken in the form of a hollow:

Circle
A
Rectangle
B
Sphere
C
Box
D
Cylinder
E

Question # 23

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

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

Question # 24

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

Connected to a laser source
A
Connected to a voltage source
B
Not connected to a voltage source
C
At different values of potential
D
Both (B) and (D)
E

Question # 25

Electric flux is:

Cross product of two vector
A
Dot product of two vectors
B
A vector quantity
C
A scalar quantity
D
Both (B) and (D)
E

Question # 26

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 # 27

Kirchhoff's first rule is also called:

Loop rule A
Thumb rule B
Point rule C
Right hand rule D
None of these E

Question # 28

Xerography means:

Dry writing
A
Wet writing
B
Poor writing
C
Excellent writing
D
Both (A) and (B)
E

Question # 29

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

Be zero
A
Be maintained constant
B
Goes on increasing
C
Go on decreasing
D
Both (A) and (B)
E

Question # 30

If the ends of a wire are connected to a battery an electric field E will be set up at:

The ends of the wire only
A
Mid points of the wire only
B
Every point within the wire
C
At nodes only
D
Both (B) and (D)
E

Sr.#	Question	Answer
1	Electric flux is:	A. Cross product of two vector B. Dot product of two vectors C. A vector quantity D. A scalar quantity
2	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
3	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
4	An inkjet printer uses in its operation:	A. Neutrons only B. Mesons only C. Positrons and photons D. An electric charge
5	As the current flow through the wire:	A. It generates heat in the wire B. It produces sound in the wire C. Resistance of the wire decreases D. Voltage across the ends is increased
6	The flux through a closed surface depends upon:	A. Shape of geometry of the closed surface B. Charge enclosed C. Nature of the medium D. Both (A) and (B)
7	The value of relative permittivity of different dielectrics are:	A. Equal B. Different C. Greater than one D. Smaller than one
8	The strength of magnetic field at certain points around a wire depends upon:	A. Value of current passing B. Distance from the current element C. Color of the material D. Both (A) and (B)
9	The obvious effect/s of current is/are:	A. Heating effect B. Magnetic effect C. Chemical effect D. Both (C) and (B)
10	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

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ECAT Pre General Science Physics Chapter 13 MCQ Test With Answer

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

ECAT Pre General Science Physics Chapter 13 Current Electricity