In order to calculate the Power we have the formula given by P = W / t or

In order to calculate the Power we have the
formula given by
P = W / t
or Power = Work or Energy in Joule
divided by Time
W = Energy with units of Joules (J)
time = t with units of sec

The units of Power is J/s that is Watt (W).

Another formula which can be used to
calculate the power is
P = I^2 *R
where I is the current in Amperes or its
sub-units and R is the resistance in Ohms

Power can be calculated by
P = V/ I
where V is the Voltage in Volts and I is
the current in Amperes.

Furthermore P = V^2 /R
where V is the Voltage in Volts and R is
the Resistancel.