The charge of electron is:
positive
negative
neutral
changes with time
Wood is an example of
an insulator
a conductor
a super conductor
a semiconductor
Who give the algebraic signs for charges?
Michel Faraday
J. J. Thomson
Rutherford
Benjamin Franklin
What happend when a charged object is in direct contact with an uncharged objects?
No changes
Repelled away
Get charged
Discharged both
Bodies having opposite type of charges,
Attract each other
Repelled each other
Freely move
None of these
Every matter is made up of billions of tiny particles called:
atoms
molecules
compounds
nucleus
When an object get negative charge?
With lose of electron
With gain of electron
With lose of proton
With gain of proton
Most of the space in an atom is
full of charges
empty
full of neutrons
The substances allow the flow of electric charges in normal state are.
Insulators
Conductors
Semiconductors
Super conductors
Conductors have large no. of
electrons
protons
neutrons
free electron
