Resistance using power and current:

\[ R = \frac{P}{I^2} \]

Resistance using power and voltage:

\[ R = \frac{V^2}{P} \]

Where:

• \(R\) is the resistance in Ohms (Ω).
• \(P\) is the power in Watts (W).
• \(I\) is the current in Amperes (A).
• \(V\) is the voltage in Volts (V).