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That's because the path of the short circuit provides a much lower resistance than the actual path and which the current will choose to flow through the path with a lower resistance rather than the path connected to a bulb,which explains that why the bulb won't light up.
Wiki User
∙ 11y ago
Wiki User
∙ 13y agoThe switch closes the circuit so a voltage is applied across the filament of a bulb causing current to flow heating the filament and causing it to glow.
Wiki User
∙ 12y agoBulbs don't light if they are burnt out or if there is no voltage applied. Since no one has any idea what is represented by your mythical Circuit A and B you'll have to be the judge of which is which.
Wiki User
∙ 13y agoA bulb does not light up if there is no voltage available across the bulb, or if the bulb is burned out.
Anonymous
Because still the bulb can light up by the cell by negative terminals current.
Anonymous
It actually , when we close the switch it will be a complete circuit.
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What is a circuit that lights up even if one bulb is out?
A parallel circuit lights up even when one bulb is out.
What is needed for an electric circuit light up a light bulb?
i have plans to make a lightbulb glow. to complete the circuit, what can i use? these are my options ....a copper penny,a plastic comb,a metal clip,or an iron nail?
Do you need to hook up a load wire?
The load is essentially what consumes electrons. For example a load on a light circuit would be a bulb. Therefore, if you don't hook up a load you aren't doing anything. It is like turning on a light switch without a bulb. It may give you some minor exercise, but it doesn't do anything useful.
What does an led do in an electronic circuit?
the function of an led is to give of light coming through an electrical circuit
What is filament coil?
it is the coiled wire that heats up and gives off light in a incandescent (ordinary) light bulb.
Why does a light bulb light in a closed circuit?
A bulb does not light up if there is no voltage available across the bulb, or if the bulb is burned out.
What happens to a bulb when you move it to the battery on a circuit?
It doesn't matter where the bulb is in respect to the battery, as long as the circuit is complete, the bulb will light up.
A complete what is needed to make a bulb light up?
circuit
What could it be if a bulb does not light up in a complete circuit?
it will not shine
If you wired up the circuit with a bulb two batteries and a switch with a thin wire what will happen?
the bulb will light up
How does a light bulb light?
light bulbs have metal contacts that connect to an electrical circuit and a filament. power lights up the filament in the bulb .
In a balanced condition of a bridge circuit a bulb was placed instead of galvanometer will the bulb light up?
No, It will go out.
Does the bulb light up in a parallel circuit?
The bulb will shine as long as it is still part of a complete circuit. You probably have a diagram for such a circuit. See if you can still trace a path through the battery and one of the bulbs without passing through the other bulb. For comparison, try the same thing with a diagram of a series circuit.
What is the function of a battery in an electric circuit?
To provide electricity for the bulb to light up.
What happens if one bulb in a series circuit burned out?
In a series circuit, all bulbs are necessary to complete the circuit. If one bulb goes out, the circuit is broken, so none of the bulbs would light up.
How do you check for an electrical short to the brake light?
A multimeter is a good tool to check for a short in the brake light. Put one end of the meter on one side of the wire near the brake light. Put the other end on the metal that is around the bottom of the bulb. If the bulb does not light up, there is a short. If the bulb lights up, there is no short in the wire.
What is the job of a bulb in a circuit?
The job of the bulb in a circuit is to convert electrical energy to light. It's called the load in the circuit.
