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When you open the switch what happen to the bulb?

Updated: 9/19/2023
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ArlieJaneArienza

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13y ago

Best Answer

It go out.

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13y ago
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Q: When you open the switch what happen to the bulb?
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Why does the bulb not light up until you press the switch?

the bulb will light up when current flows thru it if the switch is open no flow will take place


Why will a bulb not light if a switch is open in a circuit?

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If you wired up the circuit with a bulb two batteries and a switch with a thin wire what will happen?

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What describes electricity flowing from a battery though a switch to a light bulb?

Circuit Electrons flow form the positive end of the battery through the wire connecting the positive terminal to a switch. The other end of the switch is connected to one terminal on the bulb, the other terminal of the bulb is connected to the negative end of the battery. No electrons (current) flows as long as the switch is open. Once the switch is closed and if the battery has enough voltage and current capacity to make the filament in the bulb glow, then the bulb emits light (together with wasted heat). If the switch is open, no current flows through the entire circuit and the bulb does not glow.


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If lamp switch is ON and if you remove the lamp bulb we still wasting electrict?

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Why doesn't the interior lights turn on when I open the door on a 2000 Mercedes E430?

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If a light bulb is burned out and the switch is on are you still using electricity?

A standard filament bulb works on the principle that it gets hot and glows when a current is passed through it. If the filament has burned out (blown) it is open circuit and no current can flow. Therefore you are not using any electricity even if the switch is still on It may still use power if it is a lighted switch. Find a licensed electrician at www.contraxtor.com