Traditional Culture Encyclopedia - Weather inquiry - Why do microwave ovens spark when used in wet weather, but nothing happens in dry weather?

Why do microwave ovens spark when used in wet weather, but nothing happens in dry weather?

The air is moist and moist.

Because there is a lot of moisture in the humid air, when the microwave oven is plugged in, it comes into contact with the moisture in the air, which will produce an electric spark. When the weather is dry, there is no moisture in the air, so this situation does not happen often.