Why there is Spark inside Microwave Oven?

Reason of Spark :

It is due to food particle which gets stuck in the cavity of the mwo, this will lead to  spark while cooking.

Solution :

● Please keep a bowl of water in Microwave Oven.

● Switch on the MWO for five minutes .

● After five minutes when steam appears, wipe the Microwave Oven with clean cloth .

● This will most probably remove any kind of sparking from the Microwave Oven.