If the circuit consists of a resistive load only (incandescent, lamp,stove heating element, etc), the power being used is 75 watts. Use the following equation
W = E * I
W =100 * 0.75
W = 75
If your load has any reactance devices (motors), you must take into consideration the power factor of the load. The formula would then be
W = E * I * PF
In the first example, if the power factor was 0.6, the watts would be 75 * 0.6 = 45 watts.
TexMav
Power = Volts x amps x Power Factor.
If purely resistive load, or DC, Power Factor = 1 and power = Volts x amps = 75 watt.
If AC with reactance, then = volts x amps x power factor.
Power = VA = (100V)*(.75A) = 75 Watts
Power=voltage*current.
Therefore ans is 7500watts
please show the equation you used to solve it! thanks!
