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1. Question marks are mentioned with each Question.
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5. This is a ONE TIME attempt test. Once started, it cannot be reversed or attempted again.
6. Take photo of all the Sheets and make single pdf file.
1
When a negatively charged body is connected to earth, the ________________________ from the body start flowing to the earth, till the body becomes neutral and hence its potential becomes zero.
Electrons
Protons
Neutrons
None of these.
2
The process of transfer of charges from a charged object to the earth is called ______________________.
Earthing
Grounding.
Friction
Both (a) and (b) are correct.
3
When a positively charged body is connected to the Earth, the ________________________ start flowing from the earth till the positive charge of the body becomes zero, and hence potential of the body becomes zero.
None of these
4
What will happen if we remove the charged glass rod away from the metal object during the process of charging by induction ?
The distribution of charge in metal object remain same
The metal body get uncharged again
No change in the charge of metal object
None of the above
5
Where we should take shelter during lightning ?
Indoor
Under a tree
Large open field
Open water
6
What are the safety measure during lightening ?
Do not take shelter under a tree.
Try to take shelter indoors.
Get out of and away from open water.
All of these.
7
A charged glass rod attracts a charged plastic straw.
True
False
This can never happen
This is sometimes true
8
Interaction of charges is called
Lightning
Electrical discharge
Electricity
9
On charging by conduction, mass of a body may
Increase
Decreases
Increase or decrease
10
Which of the following are correct :
(a) When a negatively charged body is connected to earth, the electrons from the body start flowing to the earth, till the body becomes neutral and hence its potential becomes zero.
(b) When a positively charged body is connected to the earth, the protons start flowing from the earth till the positive charge of the body becomes zero, and hence potential of the body becomes zero.
(c) When a positively charged body is connected to the earth, the electrons start flowing from the earth till the positive charge of the body becomes zero, and hence potential of the body becomes zero.
Only (a) and (b) are correct.
Only (b) and (c) are correct.
Only (a) and (c) are correct.