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How to heat up nichrome wire? Answered

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keith rumsey
keith rumsey

7 weeks ago

I have 10 meters of 2 mm nichrome wire what volts and amps do I need to get to 1200c, or should I cut the length down

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rohitchavda2223
rohitchavda2223

10 months ago

what happen if i give constant voltage to nichrome wire., is burn out? or maintaain some saturation temperature

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VikasM51
VikasM51

1 year ago

How to make plastic sealer for my kitchen with the help of batteries up to 9 v

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Sanketkangane
Sanketkangane

1 year ago

My aim is to achieve heat of 40-45°C with voltage 12v and current got no specifications.what type of nichrome wire i can use?

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la xerra
la xerra

Reply 1 year ago

although you could buy that stuff just gut a gadget from the trash or attic, etc (hairblower, toaster..).. buy less, play more.... the folks here pretty much explained it all... if your wire is too hot lower the voltage, or lengthen the wire, or insolate it somehow .. really all depends on your specific application

i have been screwing around with nichrome lately, too... maybe you can get somethinkg out of this bird-dropping:

https://www.instructables.com/id/How-to-Cut-Glass-...


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Knoxyjosh
Knoxyjosh

1 year ago

Hey iv been reading all about heating up wire. I see that experimenting is very dangerous. Is any one able to help me. Im trying to heat up a wire or anything that gets hot. I want to heat up something really long it can be anything and it can be any width. Looking for cheapest way to heat something real long

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steveastrouk
steveastrouk

2 years ago

Think a bit more about this: A typical room heater needs about 500W. On 12V, assuming as many have poined out, that your source voltage doesn't droop under load you would need 500/12 A, or 41A from your supply.

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MrX5
MrX5

2 years ago

but does a thicker wire heat up more easily? And why isnt my drill battery heating up the wire that much?

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seandogue
seandogue

Answer 2 years ago

No, thicker wire is more difficult.

The thicker the hotwire, the more current that's required.

For instance, a couple inches of 40 gauge wire takes a couple amps at a couple of volts. Use a DC power source please. You can look up the resistance per foot of resistance wire via google/bing/etc. There are often tables presented at such sites that spell out the operating requirements.

An electric dryer's hot wire, on the other hand, is so thick it takes considerable voltage and amps to get it glowing.

Use a DC power supply or battery. No one wants you injured or killed from fussing with line current.

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Yonatan24
Yonatan24

Answer 2 years ago

(The higher the gauge, the thinner the wire)

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iceng
iceng

Answer 2 years ago

+1

That is what may have tripped up the OP

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MrX5
MrX5

2 years ago

According to my multimeter, longer wire = less amps drawn which makes no sense to me. And im trying to make a 12 volt heating system with a fan and nichrome wire as a coil to heat up the room. I know that 36 gauge wire is too thin for that but if the battery cant even heat up a 36 gauge wire how can it heat up a 22 gauge wire? (Thanks to everyone helping)

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rickharris
rickharris

Answer 2 years ago

Resistance according to Ohms law = Volts / Current so reducing the resistance will cause a bigger current to flow IF the voltage is fixed.

For example I made a hot wire cutter using a 12 volt car battery as source, My wire was a guitar top E string. Worked fine, with the addition of a 5 ohm resistor (established by experimentation) I was able to cut the foam without making the wire red hot..

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rickharris
rickharris

2 years ago

Electricity is made up of 2 components - Voltage and Current,

Voltage is equivalent to the pressure and current to the flow rate.

As you "push" electrons through a resistance (your nichrome wire) you make them do work which heats up the wire.

If the resistance is low much more current or voltage is required to provide the necessary "friction" a thicker wire has lower resistance.

Voltage is measured in Volts and Current is measured in Amps.

Voltage x Current = Watts which is a measure of power.

Relatively low currents (THOUSANDTHS OF AN AMP) can kill you.

In the UK voltages over 50 volts are considered dangerous.

If you tell us what your trying to do you may get more specific advice.

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-max-
-max-

2 years ago

electricity

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seandogue
seandogue

2 years ago

You must provide the correct voltage for the specific length of wire and current required to heat the wire of a given gauge hotwire. Thicker wire requires more "push" than thin wire.

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rickharris
rickharris

2 years ago

Pass electricity through it

NOT mains electricity - unless you know what your doing.