mgb_phys said:The light bulb fails because the current through the filament is too large.
The current depends on the resistance
How does the resistance of metal change with temperature ?
Light bulbs blow out when the filament inside the bulb breaks. This can happen due to several factors, including old age, high voltage, and physical damage.
High voltage can cause light bulbs to blow out because it puts extra strain on the filament, causing it to heat up and eventually break. It is important to use the correct wattage for your light fixture to prevent this from happening.
Yes, extreme weather conditions such as hot or cold temperatures can affect the lifespan of light bulbs. In hot temperatures, the heat can cause the filament to burn out faster, while in cold temperatures, the filament may take longer to heat up and may be more prone to breaking.
No, it is not normal for light bulbs to blow out frequently. If you are experiencing this issue, it could be due to a faulty electrical connection, incorrect wattage usage, or using low-quality bulbs. It is important to address the underlying issue to prevent frequent bulb blowouts.
While it is impossible to prevent light bulbs from blowing out completely, there are steps you can take to prolong their lifespan. This includes using the correct wattage, avoiding physical damage, and ensuring proper electrical connections. Additionally, using LED bulbs can also help reduce the chances of frequent bulb blowouts.