PH-1962
Electrical power and energy
Physics · Secondary 4 · Medium · Electrical power and energy
A 1.5 V cell is used to heat a small resistor. The current in the resistor is 0.40 A and it runs for 300 s. How much electrical energy is supplied to the resistor?
- 0.18 J
- 1.8 J
- 18 J
- 180 J
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