A student works out the energy consumed by an electric heater. What equation is used to calculate the energy $E$ in kWh?
- A$E = I\,(\text{ampere}) \times V\,(\text{volt}) \times t\,(\text{second})$
- B$E = I\,(\text{ampere}) \times V\,(\text{volt}) \times t\,(\text{hour})$
- C$E = I\,(\text{ampere}) \times V\,(\text{volt}) \times t\,(\text{second}) \div 1000$
- D$E = I\,(\text{ampere}) \times V\,(\text{volt}) \times t\,(\text{hour}) \div 1000$