To calculate the power in kilowatts (\(P\)):
\[ P = \frac{V^2}{R \times 1000} \]
Where:
Power in electrical terms is the rate at which electrical energy is transferred by an electric circuit. The SI unit of power is the watt (W), which is equal to one joule per second. Power can be calculated by multiplying voltage by current. In the context of resistance, power can also be determined by using the voltage and resistance of the circuit, as shown in the formula above.
Let's assume the following values:
Using the formula:
\[ P = \frac{120^2}{60 \times 1000} = \frac{14400}{60000} = 0.24 \text{ kW} \]
The power is 0.24 kW.
Let's assume the following values:
Using the formula:
\[ P = \frac{230^2}{115 \times 1000} = \frac{52900}{115000} = 0.46 \text{ kW} \]
The power is 0.46 kW.