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What is the process of meeting of negative charges from clouds with positive charges from ground to release huge energy called?
The process of meeting of negative charges from clouds with positive charges from ground is called as Electric discharge.
Which of the following cannot be charged easily by friction?
When a glass rod is rubbed with a piece of silk cloth the rod
Write T against true and F against false in the following statements:
Like charges attract each other.
Write T against true and F against false in the following statements:
A charged glass rod attract a charged plastic straw.
Lightning conductor cannot protect a building from lightning.
Write T against true and F against false in the following statements:
Earthquakes can be predicted in advance.
Sometime, a crackling sound is heard while taking off sweater during winters. Explain.
Explain why a charged body loses its charge if we touch it with our hand.
Name the scale on which the destructive energy of an earthquake is measured. An earthquake measures 3 on this scale. Would it be recorded by a seismograph? Is it likely to cause much damage?
Suggest three measures to protect ourselves from lightning.
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