Conductivity increases in the order of
Silver is the best conductor of electricity.
The resistance of a thin wire in comparison of a thick wire of the same material
Gases are good conductors of electricity at
The resistivity of a wire depends on
According to international convention of colour coding in a wire
The length of a wire is doubled and the radius is doubled. By what factor does the resistance change?
Electric flux at a point in an electric field is
As area of a point is zero,
If a body is charged by rubbing it, its weight
The weight can be increased slightly, if it acquire negative charge & weight can be decreased slightly, if it acquires positive charge.
What happens when some charge is placed on a soap bubble?
The radius of soap bubble increases because of outward force acting on the bubble due to charging.