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Electrostatics – An Introduction (L1)

Electrostatics Electric Charges Electrostatics – An Introduction (L1)

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Question 1 of 10

1. Question
Electrostatics deals with the study of
- charge in motion
- charges in rest
- charges in rest as well in motion
- all types of charges
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Question 2 of 10

2. Question
What happens when we rub a glass rod with silk or wool ?
- silk/wool develops positive charge while glass rod develops negative charge
- protons move from silk /wool to reach glass rod
- silk/wool develops negative charge while glass rod develops positive charge
- electrons move from silk /wool to reach glass rod
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Question 3 of 10

3. Question
What happens when we rub a plastic rod with cat’s fur?
- electrons move from plastic rod to reach cat’s fur
- protons move from plastic rod to reach cat’s fur
- plastic rod develops positive charge while cat’s fur develops negative charge
- cat’s fur develops positive charge while plastic rod develops negative charge
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Question 4 of 10

4. Question
Electrification of a body means
- passing of current through a body
- getting electric shock
- removal of charge from a charged body
- accumulation of charge on a body
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Question 5 of 10

5. Question
Which of the following forces is NOT an electric or electromagnetic force?
- covalent bond
- force binding protons and neutrons together in a nucleus
- friction force
- surface tension
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Question 6 of 10

6. Question
Electrification of a body can be done by
- by rubbing/friction and by bringing in contact with charged body only
- by rubbing/friction, by bringing in contact with charged body, and by induction
- by rubbing/friction and by induction only
- by bringing in contact with a charged body, and by induction
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Question 7 of 10

7. Question
Two metal bodies held in hand are rubbed together. It was observed that there was no development of charge on it. What can be the reason?
- Metal bodies do not get charged when they are rubbed togetherr
- Charges developed in the metal bodies go to the air and hence disappear
- There was development of charges but it is passed to the earth through our bodies
- The statement is wrong. Metals are electrified.
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Question 8 of 10

8. Question
What is a point charge?
- The amount of charge is very small in the space under consideration
- The size of the charged body is very small with respect to the space under consideration. Amount of charge does not matter.
- The amount of the charge as well as size is very small.
- None of the above
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Question 9 of 10

9. Question
Which is correct about the characteristics/nature of charges?
- they are additive and quantized only
- they are additive and conserved only
- they are conserved and quantized only
- they are additive, quantized and conserved
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Question 10 of 10

10. Question
If \(x\) electrons are there in 1 C of net negative charge. The value of \(x\) in \(10^{16}\) is
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