Revise and learn about electrical circuits, charge, current, power and resistance with this BBC Bitesize Combined Science AQA Synergy study guide.

This resistor with bands of red, violet, yellow, and gold has a value of 270,000 ohms (270kΩ) with a tolerance of ±5%. \( \begin{eqnarray*}\text{R}_\text{t} &=& \frac{3.9 \times 6.8}{3.9 + 6.8} \\ &=& ...