Electrical power is the rate at which electrical energy is produced or consumed over time, measured in watts. Power can be calculated as either joules of energy used per second, or as the product of current and voltage. The unit of power is the watt, which is equivalent to one joule per second or the amount of power dissipated by a current of one ampere flowing due to a potential difference of one volt.

1. Quantifying Electricity:
Power

2. Power
Electrical Power (P) is the rate at which electrical energy
is produced or consumed in a given time.
It is the amount of electricity required to start a device or
operate a load for one second.

3. Power
The unit of measurement for electrical power is the
Watt (W). One watt is equivalent to one joule per
second (J/s).
Formula: P = E / t

4. Summary of Units
Name Unit Symbol
Power Watt (W) P
Energy Joule (J) E
Time Second (s) t

5. Power
Electrical Power (P) is also defined as the amount of
electric current flowing due to an applied voltage.
A second formula used to find electrical power is written
as:
Formula: P = (I)(V)

6. Summary of Units
Name Unit Symbol
Power Watt (W) P
Current Ampere (A) I
Voltage Volt (V) V