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

Question # 2

An ideal voltmeter has:

Question # 3

Heating effect of current utilized in:

Question # 4

In gases, the charge carriers are:

Question # 5

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:

Question # 6

Selenium is:

Question # 7

The charge carries in the electrolyte are:

Question # 8

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

Question # 9

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

Question # 10

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

Question # 11

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 # 12

In a metal, the valence electrons are:

Question # 13

Kirchhoff's first rule is also called:

Question # 14

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

Question # 15

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

Question # 16

Thermistors are prepared under

Question # 17

An important part of photocopier is:

Question # 18

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

Question # 19

In gases, the charge carries are:

Question # 20

The fourth band is a:

Question # 21

An electric field is generated along the wire when:

Question # 22

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

Question # 23

Gaussian surface is always:

Question # 24

A rheostat can e used:

Question # 25

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

Question # 26

The value of resistivity is the least for:

Question # 27

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

Question # 28

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

Question # 29

A thermistor is a resistor which is:

Question # 30

An eV is unit of:

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 When resistance of a current carrying wire increases due to rise in temperature, the drift velocity of electrons:
A.

Decreases

B.

Increases

C.

Remains the constant

D.

Either of these
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 In case of metallic conductors, the charge carriers are
A. Protons
B. Electrons
C. Antiprotons
D. Positrons
4 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
5 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)
6

In case of metallic conductors, the change carries are:
A.

Protons

B.

Electrons

C.

Antiprotons

D.

Positrons
7 Thermistors are prepared under
A. High pressure and low temperature
B. High pressure and high temperature
C. Low pressure and low temperature
D. Low pressure and high temprature
8 The charge carriers in an electrolyte are
A. Positive ions
B. Negative ions
C. Either A or B
D. Both A and B
9 The passage of current is accompanied by a magnetic field in the surrounding space:
A.

Always accompanied

B.

Sometimes accompanied

C.

Never accompanied

D. Any of above
10 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)

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