No, fridge magnets do not put a significant electricity burden on the refrigerator. Fridge magnets are typically small, lightweight objects made of materials like plastic or rubber, and they do not consume electricity or require any power source. They are simply attached to the refrigerator's metal surface using a magnetic field.
The electricity consumption of a refrigerator is mainly determined by its internal components, such as the compressor, condenser, and fans, which are responsible for cooling and maintaining the desired temperature inside the fridge. These components draw electricity to function efficiently.
Fridge magnets, being small and non-electric, have a negligible impact on the overall electricity usage of the refrigerator. Their weight and magnetic strength are so minimal that they do not affect the fridge's energy consumption in any practical way. Therefore, you don't need to worry about fridge magnets increasing your electricity bill.