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I assume you mean in a miniature light Christmas tree light set.

Assume a 60 bulb set designed for 120 volts.

Each bulb has 120/60 or 2 volts across it when all bulbs are lit.

But each bulb has a tiny insulated wire across the contacts inside the bulb. The insulation can handle small voltages, but not 120 volts, so when the filament breaks, the voltage on the dead bulb goes from 2 volts to 120, breaking the insulation and welding the wire across the leads.

This newly welded wire then completes the circuit and the other bulbs instantly relight, now with 120/59 or 2.03 volts across each bulb, so they get slightly brighter.

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Why does your dimmer switch burn out when one of your bulbs blow?

Dimmers are rated to handle upto x amount of watts (x can vary) When one of your bulbs blows if the amount of watts used by the bulb during its blowout exceeds the amount of watts your dimmer is rated for it is possible the dimmer burns out. While this may be theoretically true, when the dimmer is rated for 600 watts and a 50-watt bulb blows and so, the dimmer, this doesn't explain why. No bulb blows out at, say 500 watts. Any other answers? Feel free to wipe out mine and the one above if you know the real answer.


How do you wire two bulbs for one switch?

To wire two bulbs to one switch, connect the live wire from the switch to the live terminal of the first bulb. Then connect a wire from the live terminal of the first bulb to the live terminal of the second bulb. Finally, connect the neutral wire from the switch to the neutral terminals of both bulbs. This setup will allow the switch to control both bulbs simultaneously.


Can i build a electric circuit by using wire a bulb a battery?

yes! connect all the bulbs in parallel.. i.e. battery positive terminal will be tied to one side terminals of bulb and other terminal to the other. but it will result in less power delivered.. and fast battery usage..


What happens when bulb blows?

When a light bulb blows, it means the filament inside the bulb has broken due to wear and tear. This causes the electrical current to stop flowing, resulting in the bulb no longer emitting light. To fix this, you simply need to replace the blown bulb with a new one.


What elements comprises a light bulb?

It depends on the type of bulb. Tungsten is the most common element in light bulbs. But there are neon based bulbs also

Related Questions

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Because both the bulbs are blown? Most drivers only drive around in towns, which have street lighting. As a result, when one bulb blows it is not noticed by the driver. Only when the second bulb blows does it become noticeable. Plus, personal experience shows that some drivers check the wrong bulb, as from 2001 Corsa's have 3 bulbs in each headlamp.


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In a parallel circuit, when one light bulb goes out, the other bulbs will continue to operate as they each have their own separate path for current flow. The brightness of the remaining bulbs will not be affected by the one that went out.


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A parallel circuit will not effect the other bulb. If the bulbs are in a series circuit the other bulb will not turn on.


Would you use Series or parallel circuit for Christmas lights?

Yes you would use a serial circuit You would use parallel circuit lights for a Christmas tree because if you used series circuit lights, and one of the bulb blows, the rest of the bulbs will go out. But with parallel circuit lights, if one bulb blows the rest of the bulbs will remain their brightness.


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That bulb goes out. The other bulbs remain on.


Why does it not effect any of the light bulbs when you take one light bulb out from the parallel circuit?

In a parallel circuit, each light bulb has its own separate path for the current to flow, so removing one light bulb does not interrupt the current to the other light bulbs. The remaining light bulbs will continue to work because the circuit is not broken.


Why does your dimmer switch burn out when one of your bulbs blow?

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What is the plural form of the word bulb?

The plural of bulb is bulbs.