What is the relationship between power, voltage and current?

Time measured in

seconds

1A=

1C/s

Charge measured in

Coulombs

What is current?

Current is the rate flow of charge

Current equation

Current= charge/time I=Q/t

Voltage

Electrical 'push'. Voltage 'pushes' current. It is measured in volts (V)

What does this show?

Power is proportional to current. Power is proportional to voltage

Formula

Power=current x voltage P=IV

Current

The flow rate of charge. It is measured in amps (A)

Power

The rate of use of energy. It is measured in watts (W)

Current measured in

amps