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answer is 2 lamps...
For 200w/220v
p1=v*i1
200=220*i1
we get i1=10/11
v=i1*r1
220=(10/11)*r1
r1=242 ohms --------------1
For 100w/220v
p2=v*i2
100=220*i2
we get i2=5/11
v=i2*r2
200=(5/11)*r2
r2=484 ohms----------------2
As n no of 200w/220v lamp is connected in series should consume the same power as that of single 100w/220v lamp ....
(v^2/n*r1)=(v^2/n*r2)-----------------3
substituting 1 and 2 in 3 ,we get..
n=2
hope am right...if not correct me...
ANSWER
Unfortunately, you are wrong.
As the resistance of each lamp filament is temperature dependent (a hot lamp has up to 18 times its cold resistance!) , there is no way of determining the resistance of each lamp when subjected to a voltage other than its rated voltage because we don't know the operating temperature at the reduced voltage. So there's no way of calculating the resulting power of each lamp when connected in series and subject to half its rated voltage. So this question cannot be answered.
What else can I help you with?
How much battery power will it take to light up three 1.5 volts bulbs in a series circuit?
The battery should be 4.5 v which is three 1.5 v cells in series. The power in watts depends on the size of the bulbs.
Will a 12 volt dc power requirement work on a AA battery?
Yes, a AA battery typically provides 1.5 volts, so you would need to connect multiple AA batteries in series to reach 12 volts. For example, connecting eight AA batteries in series would provide a total of 12 volts.
How does a 10 watts bulb work in a series connection?
A 10 watt bulb is defined by the voltage supply and the resulting current. So to make the math simple, suppose you have a 10 watt incandescent bulb designed to work at 20 volts. That means it will draw 1/2 amps. Watts = Volts x Amps. The resistance of the bulb is then Volts / Amps so in this case the resistance of the bulb would be 40 ohms. So our mythical bulb has a resistance of 40 ohms with 20 volts across the bulb in our example. Now if we put two of these bulbs in series with the same 20 volts we now have a total resistance of 80 ohms supplied by 20 volts and the circuit will draw 1/4 amp. This lower current will cause the bulbs to be dimmer.
How much is 2 watts?
2 watts is a unit of power that measures how much energy is being used per second. It is a small amount of power commonly found in small electronic devices like LED light bulbs or smartphone chargers.
What is the difference between a 60 W and a 100 W light bulb?
60 and 100 watt in series then the 60 watt will have the biggest voltagedrop.In parallel they are the same.Using a voltage of 120 volts, the 60 watt lamp would have 75 volts across it and the 100 watt lamp would have 45 volts across it in a series circuit, bringing the total to 120 volts.
How much battery power will it take to light up three 1.5 volts bulbs in a series circuit?
The battery should be 4.5 v which is three 1.5 v cells in series. The power in watts depends on the size of the bulbs.
What happens if three 60 W light bulbs are mistakenly wired in series and connected to a 120 V power supply Assume the light bulbs are rated for single connection to 120 V?
Since the bulbs are in series, each one will have 40 volts across it instead of the 120 volts it was designed for. The bulbs will glow very dimly or not at all.
Are bulbs in a parallel circuit brighter in a series circuit than a parallel circuit?
In the parallel connection the voltage is same across both lampsFor example 2 bulbs rated at 10 Volts and drawing 1 amp each will consume 20 Watts of power and burn with full brilliance.In the series connection the 2 bulbs can only have 5 Volts across each bulb. The current can only be 0.5 Amps and the power drawn from the supply is now 2.5Watts in each bulb. The two dim bulbs only draw a total of 5 Watts.
Will a 12 volt dc power requirement work on a AA battery?
Yes, a AA battery typically provides 1.5 volts, so you would need to connect multiple AA batteries in series to reach 12 volts. For example, connecting eight AA batteries in series would provide a total of 12 volts.
What is the voltage rating when a string of A Christmas bulbs in series draws Ampere when connected to a volt source?
If the bulbs are wired in series, the voltage rating for each bulb is the source voltage divided by the number of bulbs in the series. You can tell if they're wired in series by removing a bulb. If all of the other lights go out, you have a series circuit. If all of the other bulbs stay lit, you have a parallel circuit. If half of the lights go out and the other half stay lit, you have two series circuits in parallel. The source voltage is about 110 volts in North America or about 220 volts in Europe (I don't know about Asia or Australia). If you have a series/ parallel mix, count only the bulbs that go out with the one you removed. For example, if you have 50 lights in one series in North America, the voltage across each bulb is about 2.2 volts.
What is the effect of connecting 25 Watts at 110 Volts in series with 100 Watts at 110 Volts?
If you put the 25w behind the 100w then it might not work at the full 25w and vice versa
Why you can't usually swap bulbs between series and parallel sets of lights?
If it is in the same circuit, the voltage would not be the same. ANSWER: That is possible if both bulbs have the same rating of volts and amperes
What is the recommended voltage for 130 volts light bulbs?
The recommended voltage for 130-volt light bulbs is 130 volts.
What happen Two identical 115 volt light bulbs connected in series with 240?
When two identical 115-volt light bulbs are connected in series to a 240-volt supply, the voltage is divided equally between the two bulbs. Each bulb would receive 120 volts, which is higher than their rated voltage of 115 volts. This excess voltage can cause the bulbs to overheat and potentially burn out quickly, leading to a failure of both bulbs. Thus, it's not recommended to connect them in this manner.
What is the maximum voltage of incandescent light bulbs?
The maximum voltage of incandescent light bulbs is up to about three hundred volts. They can also go down as low as 1.5 volts. Incandescent light bulbs are the least efficient lighting system. More modern methods like flourescent lightbulbs are far more efficient.
When using a 9 volt battery on a closed circuit with 2 light bulbs how many volts are used to light each bulb?
Each light bulb will receive the full 9 volts from the battery in a series circuit, so each bulb will be operating on 9 volts.
How many light bulbs can 650 volts light?
As many as you want. But where do you find 640 volts RMS?
