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

The obvious effect/s of current is/are:

Question # 2

The flux through a closed surface depends upon:

Question # 3

The charge carries in the electrolyte are:

Question # 4

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

Question # 5

Gaussian surface is always:

Question # 6

In a metal, the valence electrons are:

Question # 7

In gases, the charge carriers are:

Question # 8

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

Question # 9

Electric field lines emerge from the charge in:

Question # 10

In case of metallic conductors, the change carries are:

Question # 11

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

Question # 12

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

Question # 13

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

Question # 14

Tick the correct statement:

Question # 15

Two dissimilar metals joined at their ends kept at constant temperature constitute:

Question # 16

Magnetic effect of current is used:

Question # 17

The inkjet printer ejects a thin stream of:

Question # 18

Kirchhoff's first rule is also called:

Question # 19

Another mean of electric potential energy per unit charge is given by:

Question # 20

An inkjet printer uses in its operation:

Question # 21

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

Question # 22

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

Question # 23

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

Question # 24

Thermistors are prepared under

Question # 25

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

Question # 26

A thermistor is a resistor which is:

Question # 27

Aluminum is a:

Question # 28

The value of relative permittivity of different dielectrics are:

Question # 29

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:

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 The charge carriers in an electrolyte are
A. Positive ions
B. Negative ions
C. Either A or B
D. Both A and B
2 If the ends of a wire are connected to a battery an electric field E will be set up at:
A.

The ends of the wire only

B.

Mid points of the wire only

C.

Every point within the wire

D.

At nodes only
3 Gaussian surface is always:
A.

Rectangular

B.

Spherical

C.

Cylindrical

D.

Box shape
4

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
5 Electric field lines emerge from the charge in:
A.

One dimension

B.

Two dimensions

C.

Three dimensions

D.

Four dimensions
6 The positive charge moving in one direction is equivalent in all external affects to a:
A.

Negative charge is moving in the same direction

B.

Positive charge is moving in the opposite direction

C.

Negative charge moving in the opposite direction

D.

Positive charges moving in the same direction
7 An eV is unit of:
A.

Potential

B.

Energy

C.

Work

D.

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

Increases

B.

Decreases

C.

Remains the constant

D.

Either of these
9

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
10 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

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