The formula to calculate Power (P) in Watts (W) is:
\[ P = I^2 \times R \]
Where:
Ohms and Watts are units of measurement used in electricity. Ohms measure electrical resistance, indicating how much a device or material resists the flow of electric current. Watts, on the other hand, measure power, indicating the rate at which energy is used or produced. The relationship between these two units is defined by Ohm’s Law and the Power Law, which state that power (in watts) equals the square of the current (in amperes) times the resistance (in ohms). Therefore, converting ohms to watts involves knowing the current involved in the circuit.
Let's assume the following values:
Using the formula to calculate Power (P):
\[ P = 2^2 \times 5 = 4 \times 5 = 20 \text{ W} \]
The Power is 20 watts.