Cellphone rings inside microwave oven

In summary, the reason a cellphone can still ring inside a microwave oven is because cellphone frequencies are higher than microwave frequencies, allowing them to penetrate through the faraday cage. Although most ovens operate at 2.4Ghz, which is convenient for heating food, this frequency is also used for bluetooth and Wifi due to the lack of existing communication standards. Additionally, GSM phones operate at different frequencies, making them more likely to pick up weak signals.
  • #1
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Why a cellphone rings inside microwave oven? Does the microwave oven don't block cellphone radiation?
 
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  • #2
cellphone frequencies are much higher than microwave frequencies hence they penetrate through the faraday cage in the microwave. hell I've seen cell phone calls go through a lab faraday cage.
 
  • #3
Actaully they are lower.
Most oven operate around 2.4Ghz. (Not only is this convenient for water molecules in food but because there weren't any communications systems at this frequency.
Unfortunately because there weren't any exisitng communications standards using this - it was also chosen for bluetooth and Wifi.)

GSM phones operate at 900/1800 Mhz in Europe or 950/1900 in the US.
The reason your phone rings is that it is very good at picking up extremely weak signals, at least to be able to detect a call. It might not be able to transmit/recv voice while in the oven - try getting inside the oven and answering it.
 

1. Why does a cellphone ring inside a microwave oven?

A cellphone rings inside a microwave oven because microwaves are a form of electromagnetic radiation that are used to heat food. These microwaves can also interfere with the cellphone's signal, causing it to ring.

2. Is it safe to put a cellphone inside a microwave oven?

No, it is not safe to put a cellphone inside a microwave oven. Microwaves can cause damage to the internal components of the cellphone and can also potentially cause a fire.

3. Can a cellphone be damaged by being in a microwave oven?

Yes, a cellphone can be damaged by being in a microwave oven. The microwaves can cause the circuitry and other internal components to malfunction or even melt.

4. How long can a cellphone be in a microwave oven before it gets damaged?

The amount of time a cellphone can be in a microwave oven before getting damaged can vary. However, it is generally not recommended to put any electronic device inside a microwave oven, even for a short amount of time.

5. Can a cellphone still work after being in a microwave oven?

It is unlikely that a cellphone will still work after being in a microwave oven. The microwaves can cause irreversible damage to the internal components, rendering the phone unusable. It is best to avoid putting a cellphone inside a microwave oven altogether.

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