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Calculate the Power in watts dissipated by a resistor of 1000 ohms with 200 volts across it 2 watts 20 watts 40 watts 400 watts? |
Answer
Ohms law states that
V = I * R
I = V/R
R = V/I
P = I*V
Where V = Voltage, I=Current, R = Resistance and P = Power or Watt
Watt is the amount of electricity flowing through a line which is (Voltage times Current in (Amperage) = Power or watts)
To find the power dissipated by a resistor of 1000 ohms, we first find the current I. The voltage is given as 200volts.
Therefore I = V/R = 200/1000 = 0.2Amps
We said Power or Watt = I*V
Therefore the Power or watts dissipated by a resistor of 1000 ohms will be P=I*V = 200*0.2 = 40 Watts
First answer by Aiko. Last edit by Aiko. Contributor trust: 24 [recommend contributor]. Question popularity: 20 [recommend question]
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