Question

define the one watt of electric power and also define the one ohm resistance.

Answer 1

1 watt of electrical power is the rate of consumption of 1 joules of energy in 1 second.

One ohm Resistance is equal to the 1 Volt of potential difference per unit current.

Answer 2

1 watt of electric power is drawn when 1 Ampere of electric current passes through 1 Volt of potential difference applied across the ends of the two points of a conductor.

$p = vi$
where p stands for power
V stands for potential difference
I stands for Electric current