Question

If electric power and resistance are expressed as \( P \) and \( R \) respectively, then electric current is expressed as:

• A. \( \frac{P}{R} \)
• B. \( \sqrt{\frac{P}{R}} \)
• C. \( \frac{R}{P} \)

Hint:

To remember the formulas: - Power \( P = I^2 R \) - Voltage \( V = IR \) - Power \( P = VI \)

Answer 1

The Correct Option is B

The relationship between electric power \( P \), resistance \( R \), and current \( I \) is given by the formula: \[ P = I^2 R \] Rearranging this equation to solve for current \( I \), we get: \[ I = \sqrt{\frac{P}{R}}. \]