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Nothing if the current capacity of the circuit is not exceeded. The extra bulb will draw more current and if the limit is not reached all bulbs will continue at their rated brightness.

If the current capacity is overrdrawn either the circuit breakeer will break and stop all lights or if the capacity is not fused all lights will dim.

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14y ago
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12y ago

Depends on the capacity of the power supply. If the power supply can push enough amps nothing will happen to the brightness. If the power supply is inadequate, each lamp will dim a little.

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Power supplies don't 'push' current into a circuit; current is 'drawn' from the supply to the load.

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12y ago

"nothing happens" the brightness of the bulb is depends on the voltage since more bulb are added in the parallel circuit voltage remain same but the current drawn will increase with no of bulb added..

in practical house wiring has the same case..... you can observe easily.

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11y ago

what happens is as you add more light bulbs the brightness begins to dim.This is because the bulbs are sharing power from the same source. If you want to make the bulbs brighter you must increase the amount of cells in the circuit;hope this helps.

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14y ago

The brightness of the bulbs will not be effected. The circuit will just be made longer.

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10y ago

The brightness of each individual bulb shouldn't be affected, if you have enough power to keep the voltage constant.

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Q: What do you notice about the brightness of the bulbs in the parallel curcuits as you add more bulbs to it?
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How does the brightness of each bulb in a parallel circuit compare to the brightness of the bulb in a series circuit?

u see the light bulbs on a series circuit's brightness evolves and the brightness on a parallel's circuit dont


How would you compare the brightness of the bulbs as you increase the number of bulbs?

-- If the bulbs are in parallel, then the addition of a bulb has no effect on the brightness of those that were there before. -- If the bulbs are in series, then the addition of a bulb causes the brightness of those that were there before to decrease. (And I wasn't even there when you did the experiment !)


Light bulb in parallel circuit brightness?

Two bulbs connected in parallel are brighter than two connected in series. The resistance of the circuit is lower, electrons can flow more easily.


Is it true that when a round bulb and a long are connected in a parallel circuit the long bulb is brighter than the round bulb?

Bulbs that are connected in parallel would be the same brightness as a bulb on its own. If the bulbs were in series with other bulbs, then they would be dimmer. The voltage would drop across a series.


In a parallel circuit how is the brightness of the light bulbs?

the bulbs would be very bright seeing as the two or more light bulbs have very easy excusable paths for electricity to flow and get to the light bulbAnswerBecause the voltage across each branch of a parallel circuit is the same, each lamp will be subject to its rated voltage and, therefore, will operate at its rated power output.

Related questions

You are building a string of lights using several bulbs how is the brightness of the lights related to whether you connect the bulbs in series or in parallel?

Overall brightness (not individual bulbs' brightness) will increase when we connect them in parallel & it will decrease when we connect them in series.


How does the brightness of each bulb in a parallel circuit compare to the brightness of the bulb in a series circuit?

u see the light bulbs on a series circuit's brightness evolves and the brightness on a parallel's circuit dont


How would you compare the brightness of the bulbs as you increase the number of bulbs?

-- If the bulbs are in parallel, then the addition of a bulb has no effect on the brightness of those that were there before. -- If the bulbs are in series, then the addition of a bulb causes the brightness of those that were there before to decrease. (And I wasn't even there when you did the experiment !)


When three bulbs connected to a battery in parallel circuit what will happen to the brightness of the bulbs?

The brightness of three bulb would be mare than one


Will connecting bulbs in parallel make the bulbs brighter or dimmer?

Neither. Connecting lamps in parallel subjects each lamp to its rated voltage, so they will each operate at their rated power (therefore brightness).


In parallel circuits adding more bulbs causes them to stay the same brightness because?

the voltage across each is the same


Would the brightness of a parallel circuit of 3 globes increase or decrease when a fourth is added?

The brightness would remain constant but the power draw will increase. If the circuit was series wired, the brightness would go down as you added bulbs.


Light bulb in parallel circuit brightness?

Two bulbs connected in parallel are brighter than two connected in series. The resistance of the circuit is lower, electrons can flow more easily.


What will be the brightness of the third bulb when we attach one bulb to a parallel connection of two bulbs with same power?

since all the bulbs are connected in parallel the voltage supplied for all the bulbs are same......so third bulb also glows with the same brighteness......this is same as the tube lights connected in our house.............


Which circuit has brighter bulb side by side?

Bulbs in a parallel circuit draw the same amount of current, so each will display the same brightness. Bulbs in a series circuit share the current so all bulbs will appear dimmer.


Does the brigthness of a bulb stay the same in a parellel circuit no matter how many bulbs are there?

If all the bulbs are connected in parallel, and there is enough current, yes, the brightness will be the same. The voltage (which is the amount of energy in every charge), remains the same for all bulbs


Is it true that when a round bulb and a long are connected in a parallel circuit the long bulb is brighter than the round bulb?

Bulbs that are connected in parallel would be the same brightness as a bulb on its own. If the bulbs were in series with other bulbs, then they would be dimmer. The voltage would drop across a series.