Static electricity can be generated by:
Lubrication
Friction
Motion
Smaller the objects
Value of âkâ depends upon:
System of unit
Nature of medium
Both a and b
None of these
SI unit of electric potential is:
watt
volt
coulomb
joule
If the potential energy of none coulomb charge is one joule then its potential will be:
5 volt
2 volt
3 volt
1 volt
The electrostatic force acting on two charges each of 1C separated by 1m is about:
9X109 N
9X10-9 N
9X108 N
9X10-8 N