## Common daily life science queries – 6

Q:- What will be the weight of a person on moon? Will it be less or more than his weight on the earth?

Ans:- As the acceleration of the gravity of the moon is one-sixth that of the earth; therefore the weight of a person on the surface of the moon will be one-sixth of his actual weight on earth.

Q :- Why do some liquids burn while others like water do not? Continue reading “Common daily life science queries – 6”

## Cause of the resistance in a wire

RESISTANCE AND RESISTIVITY

The resistance of a conductor is the obstruction offered by the conductor to the flow of electric current through it.

Resistance (R) of a conductor is defined as the ratio of the potential difference (V) across the ends of the conductor to the current (I) flowing through it i.e.

R=V/l

The S.I unit of resistance is Ohm. Where 1 Ohm= 1volt/1ampere=1V/1A

Thus 1 ohm is the resistance of a conductor through which a current of 1 ampere flows when a potential difference of 1 volt is applied across the ends of the conductor.

cause of the resistance of a wire: Continue reading “Cause of the resistance in a wire”