Some Natural Ph...

If $${ 10 }^{ 9 }$$ electrons move out of a body to another body every second, then the time required to get a total charge of $$1C$$ on the other body is then

If the Richter scale reading for an earthquake is less than 3.5 then what can you say about the earthquake?

Spark produced in sky during a thunderstorm are called

Following are precautions one must take in case a storm is accompanied by lightning.

i) Do not take shelter under a tree.

ii) Do not take shelter under an umbrella with a metallic end.

iii) Do not take shelter in open garages, storage sheds, etc.

iv)  Do not take shelter in a bus in the open.

Which one of these is not correct?

When a glass rod is rubbed with dry silk cloth, the charge acquired by the silk cloth is

Two objects when rubbed together, get charged. The charges on them are:

When an ebonite rod is rubbed with fur, the rod acquires

What are the weak zones around the boundaries of plates underneath Earth, which are prone to slide and cause earthquakes?

Where is the lower end of a lightning conductor fixed in the building?

What happens when two bodies are rubbed together?