Traditional Culture Encyclopedia - Photography and portraiture - The picture shows a simplified circuit diagram of a household electric rice cooker. The electric cooker has the functions of "cooking" and "heat preservation" ...

The picture shows a simplified circuit diagram of a household electric rice cooker. The electric cooker has the functions of "cooking" and "heat preservation" ...

when S1 and S2 are disconnected: P=22? /(2+5) = 23.6 w

when S2 is closed: P=22? /5=968W

The power of the rice cooker jumps between 23.6W and 968W during heat preservation.