Explanation
This mnemonic represents the formula: Power in watts = V * I. Set to the tune of "Twinkle, Twinkle, Little Star," this memory aid helps electronics students recall the formula P = I²R, which links electrical power to current and resistance.
Example: a circuit carries a current of 2 amps (I = 2) through a resistor of 3 ohms (R = 3).
- P = I²R
- P = 2² × 3
- P = 4 × 3 = 12 watts