Answer: 1 kWh.
- A 1 kWh
- B 60 kWh
- C 1 J
- D 3600 J
Correct answer: A. 1 kWh
Explanation: Energy = Power x time = 1 kW x 1 h = 1 kWh. (This equals 3.6 x 10<sup>6</sup> J = 3.6 MJ)
In series, the same current flows through both resistors; in parallel, the current splits between branches and the voltage across each resistor is the same.
Concept context
Ohm's law, resistors, Kirchhoff's laws, Wheatstone bridge, and cells.