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Two lamps A and B are rated 60W 220V and 100W 220V respectively so why does the answer say that when connected in parallal bulb A is brighter?
Wiki User
∙ 9y ago
In parallel, they both obviously have 220 v across them, so the 100 W bulb is obviously brighter than the 60 W one.
The 60 W bulb has more resistance, and in series they both have to pass the same current, so the 60 W has more voltage across it and might be brighter.
Wiki User
∙ 9y ago
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Why are street lights connected in parallel?
street lights are connected in parallel mostly because if any lamp stops glowing but the other lamps continue their glow
What happens to the power output of the source if more lamps are connected in parallel?
Nothing will happen to the possible output power of the power source i.e it will not increase. Each power source has its maximum possible output power. Adding more lamps in parallel will result in a drop in the circuit's total resistance which causes the total current drawn by the lamps to increase. Your wires might be burnt as a result so be careful.
Which bulb will glow brighter two bulbs of rating 100w-220vand200w-220v are connected in a series to a supply of 22ov?
For a lamp to operate at its rated power, it must be subject to its rated voltage. The lower the voltage, the lower the resulting power. In fact, a small drop in voltage will cause substantial drop in power. Higher 'wattage' lamps have lower resistance values than lower 'wattage' lamps.So, if you put two lamps in series, the greater voltage drop will appear across the lamp with the greater resistance. In your example, that means the 100-W lamp will be subject to the greater voltage drop, and its loss of power will be less than that of the 200-W lamp. So the lower power lamp will be the brighter of the two.
Why does the glow of two lamps decrease when they are connected in series?
Because the total current is divided between the two components. For example, if the current was one amp, and you connected two bulbs in series, ech bulb would get half an amp of current. As brightness is proportional to current, this means they glow more dimly.
Why do bulbs get dimmer in series circuits?
When light bulbs are connected in series circuits, they will get dimmer whenever a bulb is added. This is because the current is shared between all of the bulbs equally.AnswerLamps only operate at their rated power when subjected to their rated voltage. If you connect lamps in series, each lamp will be subject to a lower voltage, so they will not operate at their rated power and, so, will be dimmer. The more powerful lamps will actually glow less than the less-powerful lamps because their resistance is lower and the voltage drop across them will also be lower than the voltage drop across the less powerful lamps.
Are bulbs in parallel brighter or bulbs in series brighter?
Lamps connected in parallel are subject to the same voltage. Provided this voltage corresponds to the lamps' rated voltage, then each lamp will operate at its rated power and at its full rated brightness.Individual lamps connected in series operate below their rated voltage (the sum of the voltage drops around a series circuit equals the supply voltage) and will, therefore, operate below their rated power and brightness. The lamps will vary in brightness; those with the lower power ratings will be brightest and those with the higher power ratings will be least bright.
If circuit A has 2 lamps and 1 cell while circuit B has 2 lamps and 2 cells, which circuit’s lamps are brighter?
Circuit B
How many types of lamps are there?
There are many different types of desk lamp, ranging from lamps using traditional tungsten (or enerygy saving bulbs) to lamps using the more powerful halogen lamp. These are usually used where brighter light is required.
How many types of desk lamps are there?
There are many different types of desk lamp, ranging from lamps using traditional tungsten (or enerygy saving bulbs) to lamps using the more powerful halogen lamp. These are usually used where brighter light is required.
If both series and parallel circuits have 1 cell and 3 lamps, which type of circuit would be brighter?
Parallel circuit.
Why does 2 bulbs glow less brighter in series connection and more brighter in parallel connection?
Because in series they split the voltage. Two resistors in series have half the voltage. In parallel they have the same voltage and draw current according to their individual resistance.AnswerFor a lamp to operate at its rated power, it must be subject to its rated voltage. For example, two 120-V lamps will operate at full power when connected in parallel across a 120-V supply, because each branch of a parallel circuit is subject to the same supply voltage.If the same lamps were connected in series across a 120-V supply, each would be subject to a voltage drop of 60 V, resulting in each lamp burning dimly.However, two identical 120-V lamps would operate at full rated power if connected across a 240-V supply, because the voltage drop appearing across two identical lamps will be 120 V. However, if the two lamps had different power ratings (and, therefore, different resistances), one voltage drop would be higher than the other, causing one lamp to burn brighter than the other. Since the lamp with the higher power rating has the lower resistance, the greater voltage drop would appear across the lower-power lamp which would burn brighter than the higher-power lamp.
Why do you connect electrical lamps in series?
If you are referring to house wiring, then you don't normally connect lamps in series with each other; they are normally connected in parallel with each other. When lamps are connected in parallel, each lamp is subjected to the same voltage; providing this is the rated voltage of each lamp, them each will operate at their rated power.If you did connect lamps in parallel, the you would find that the lamps with the higher power ratings will be dimmer than the lamps with the lower power ratings -which is not what you might expect!
How many amperes will a 28-volt generator be required to supply to a circuit containing five lamps?
It depends on how much power the lamps require, and on how they are connected.
Why do fog lamps show up more in fog than other lamps?
Fog lamps on a car show up a lot more in the fog than other lamps simple because they are much brighter. It is therefore advised that you only use them in extreme cases of fog as it can cause issues for other drivers if you have your fog lights on when there is little to no fog.
What new use for whale oil found in the 1900s?
Whale oil was used for lamps. This is was very popular because whale oil was brighter and did not smell.
What new use was whale oil used in the 1900s?
Whale oil was used for lamps. This is was very popular because whale oil was brighter and did not smell.
Are the lamps in buildings connected in parallel or series?
No. They are connected in parallel with each other.
