Question

Define watt. Write down an equation linking watts, volts and amperes.

Answer 1

Watt- It's a SI unit of power. If a machine or any entity is producing one Joule of work or energy in one second,then we'll say that power of the machine is 1 watt.
or
the SI unit of power, equivalent to one joule per second, corresponding to the rate of consumption of energy in an electric circuit where the potential difference is one volt and the current one ampere.

P = V.I
hence we can say that
watt = volts . amperes