Electric Charges and Fields Test

Result

Electric Charges and Fields Test - 2

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Weekly Quiz Competition

Question 1
4 / -1

There are two types of electric charges positive charges and negative charges. The property which differentiates the two types of charges is

A
field of charge

B
amount of charge

C
strength of charge

D
polarity of charge

Solution

The property which differentiates the two types of charges is called the polarity of charge.
Question 2
4 / -1

What will happen when we rub a glass rod with silk cloth?

A
Some of the electrons from the glass rod are transferred to the silk cloth.

B
The glass rod gets positive charge and silk cloth gets negative charge.

C
New charge is created in the process of rubbing.

D
Both (a) and (b) are correct.

Solution

When a glass rod is rubbed with silk cloth then some of the electrons from the glass rod get transferred to silk cloth and thus the glass rod gets positive charge and the silk gets negative charge. No new charge is created in the process of rubbing.
Question 3
4 / -1

When a person combs his hair, static electricity is sometimes generated by what process?

A
Contact between the comb and hair results in a charge.

B
Friction between the comb and hair results in the transfer of electrons.

C
Deduction between the comb and hair.

D
Induction between the comb hair.

Solution

While combing hair, friction between the comb and the hair results is the transfer of electrons.
Question 4
4 / -1

Object may acquire and excess of deficiency of charge by

A
electric force

B
heating

C
shaking

D
by rubbing

Solution

Object can be charged by rubbing. During rubbing some of the free electrons may get transferred from one object to other.
Question 5
4 / -1

The charge on an electron was calculated by

A
Faraday

B
J.J. Thomson

C
Millikan

D
Einstein

Solution

Charge on an electron was measured by Millikan with the help of the oil drop experiment.