Which of the following situations will be most similar to an electric current passing through a metal wire in a closed circuit

1 hot water moving through a pipe
2 an automobile traveling through a tunnel
3 an airplane flying through the clouds
4 a frying pan heating up on a hot plate
5 a bird building a nest

The most similar situation to an electric current passing through a metal wire in a closed circuit would be 4) a frying pan heating up on a hot plate. In this scenario, electrical energy is being converted into heat energy as the current passes through the metal wire of the hot plate, similar to how an electric current flowing through a wire in a closed circuit would be used to generate heat or perform other useful work.