Current in resistors is in phase with voltage.

电阻器中的电流与电压同相。

Remember, when a wave is in phase with another wave, their crests and troughs are amplified, meaning that the light is brighter, thanks to constructive interference.

请记住，当一个波与另一个波同相时，它们的波峰和波谷被放大，这意味着光更亮，这要归功于相长干涉。