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The 194 bulb is ~3.8 watts, at 14 volts they draw 0.271 amps.
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∙ 10y ago
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How much amperage do headlights draw?
Depends on the wattage of the bulb. Formula is Power (watts) = Voltage * Current (A). Therefore for a 55w bulb, in a 12V car, bulb draws 4.6Amps.
What size resistor do you need to power a 14 volt bulb from a 120 outlet?
To find the resistance necessary, one would need to know how much current the bulb draws. If one knows the current the bulb draws, then one would subtract the 14 volts from 120 volts then divide that by the current the bulb draws and one will find the resistance needed. Once this has been done, one would need to multiply the current drawn by the voltage drop to get the wattage rating necessary. Another important detail to note is that the power dissipated by the resistor will be much greater than the power consumed by the bulb itself. Finally if the bulb burns out the voltage across the contacts will be 120V. I would not recommend using this method to drop the voltage for the bulb.
How many amps fluorescent bulb?
When you buy the bulb. All of those specifications should be on the package. To figure the Kilowatts it's pulling and cost to run. kW = amps x volts / 1000. then just take your kW x price per kw. and that will give you how much it costs to run that bulb for one hour. The amperage is on the label of the ballast. When you connect the ballast to power you will see it along with the voltage and pf of the ballast. F40T12 twin 8 foot tubes, ballast usually draws about .75 amps.
Does a 100w light bulb use more electricity than a refrigerator?
A 100 watt light bulb draws a little less than one amp. A refrigerator draws much more when compressor is running. The duty cycle of the light and refrigerator will ultimately determine which uses more power on a Kilowatt Hour basis.
How much power does a 40w fluorescent light use?
The answer is 0.04 kW. Since it says the bulb is a 40 watt bulb, just divide by 1000 to get the kW of the bulb.To answer this question correctly a time span must be given. How long will the bulb be energized to give the rating of kWhkilowatt hours.
How much amperage do headlights draw?
Depends on the wattage of the bulb. Formula is Power (watts) = Voltage * Current (A). Therefore for a 55w bulb, in a 12V car, bulb draws 4.6Amps.
Is 110 volts 10 amps?
Voltage and Amperage are not directly dependent upon each other. Electricity is like water in the way that it "flows". Voltage is analagous to water pressure (like PSI), whereas amperage is analagous to the amount of water actually flowing (like gallons-per-minute). As voltage increases, amperage typically decreases and vice versa. But the actual amperage of a 110 V circuit depends on the device connected to it and how much current it draws. For instance, a 12 amp vaccuum cleaner is gonna draw 12 amps out of a 110 V circuit, whereas a 60 watt light bulb connected to the same circuit is gonna draw about half an amp (amperage=wattage/voltage, or amperage=60/110).
How long does a 12 volt light bulb last with a 9 volt battery?
Depends. Whats the amperage rating on the bulb and the battery? Is the 12 volt bulb LED? The equation to find your answer depends on how much your 12 volt bulb is drawing and how much your battery has. I have seen 12 volt bulbs that are searchlights and I have seen 12v bulbs that are little LED ones. Huge difference in the amperage draw which will have a massive difference in your answer to how long your 9 volt battery will last. Same goes for the amperage of your battery. I have been in the military and seen 6 volt batteries that are smaller than a AA and I have seen the 6V at walmart that are decent sized and much bigger than a 9v.If you want to power your 12v bulb for a long time, connect two 6v batteries in parallel. That will give you lots of amperage and a full 12 volts.Another AnswerA 12-V incandescent lamp, operating at 9 V, will operate well-below its rated power and will, therefore, last much longer than it it were operated at 12 V. Further to the original answer, lamps don't have 'amperage' (current) ratings and is certainly unrelated to 'how much the battery has'! Finally, in order to achieve 12 V, two 6-V batteries would need to be connected in series, NOT parallel.
What size resistor do you need to power a 14 volt bulb from a 120 outlet?
To find the resistance necessary, one would need to know how much current the bulb draws. If one knows the current the bulb draws, then one would subtract the 14 volts from 120 volts then divide that by the current the bulb draws and one will find the resistance needed. Once this has been done, one would need to multiply the current drawn by the voltage drop to get the wattage rating necessary. Another important detail to note is that the power dissipated by the resistor will be much greater than the power consumed by the bulb itself. Finally if the bulb burns out the voltage across the contacts will be 120V. I would not recommend using this method to drop the voltage for the bulb.
How many amps fluorescent bulb?
When you buy the bulb. All of those specifications should be on the package. To figure the Kilowatts it's pulling and cost to run. kW = amps x volts / 1000. then just take your kW x price per kw. and that will give you how much it costs to run that bulb for one hour. The amperage is on the label of the ballast. When you connect the ballast to power you will see it along with the voltage and pf of the ballast. F40T12 twin 8 foot tubes, ballast usually draws about .75 amps.
How much amperage does a 12v LED draw?
Not enough to worry about. That's like asking how many amps does the memory preset's on your radio draw. It is in the .001-.01 range.
Does a 100w light bulb use more electricity than a refrigerator?
A 100 watt light bulb draws a little less than one amp. A refrigerator draws much more when compressor is running. The duty cycle of the light and refrigerator will ultimately determine which uses more power on a Kilowatt Hour basis.
How much amperage for a 20 hotpoint stove?
How much amperage for a hotpoint 20 inch stove
One 100-watt bulb draws 0.87 amperes of current how many amperes will 17 such bulb draw?
If this is a homework assignment, please consider trying to answer it yourself first, otherwise the value of the reinforcement of the lesson offered by the assignment will be lost on you.If a 100-watt bulb draws 0.87 amperes of current, 17 of them will draw about 14.8 amperes, (0.87 times 17), if they were wired in parallel.However, wiring them in series would not give you 0.051 amperes, (0.87 divided by 17), as one might expect, because the resistance-temperature coefficient of bulbs is quite dramatic, so more current would actually be drawn because the bulbs would be much cooler. How much more would require testing. You could do this by supplying 6.8 volts to one bulb and seeing what you get, or just hook 17 of them up in series to 115V.
When lightbulbs are connected in a series how much current flows through each one?
same current flow in each bulb
How much power does a 40w fluorescent light use?
The answer is 0.04 kW. Since it says the bulb is a 40 watt bulb, just divide by 1000 to get the kW of the bulb.To answer this question correctly a time span must be given. How long will the bulb be energized to give the rating of kWhkilowatt hours.
In a parallel circuit does the battery run out very quickly?
No, it will run out just as much as if you put it in a series circuit. Parallel circuits involve the same voltage or amperage to go to each component.
