What is the relationship between power, voltage and current?
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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
