Putting a compass in a microwave can have several consequences, most of which are not recommended. Here are some potential outcomes:
Damage to the compass: The microwave emits electromagnetic waves that generate heat by causing water molecules to vibrate. These waves can interfere with the delicate magnetic components inside the compass, potentially damaging or permanently altering its functionality. The magnetic needle of the compass could be affected, leading to inaccurate readings or a complete failure of the compass to work.
Damage to the microwave: Microwaves are designed to heat food, not metal objects. The metal components of the compass can cause sparks or electrical arcing inside the microwave, which can damage the microwave's internal components and potentially create a fire hazard. It is generally unsafe to place any metal objects inside a microwave.
Risk of fire: If the compass or any other metal object inside the microwave generates sparks or arcing, it can ignite flammable materials or cause a fire within the microwave itself. This can result in damage to your microwave, surrounding objects, and even pose a danger to your personal safety.
Potential health hazards: Microwaving a compass can release toxic substances if the compass contains any hazardous materials, such as mercury or lead. These substances can vaporize or release fumes when exposed to high temperatures, posing a risk to your health if inhaled.
Given these potential consequences, it is strongly advised not to put a compass or any other metal objects inside a microwave. Microwaves should only be used for their intended purpose of heating food and beverages.