How To Make An Electric Arc | The Science



The Science

How to make an electric arc

The arc discharge is a special case of the electric discharge. He has a number of properties that distinguish it from other species. Such a discharge can occur at both the DC and AC. In the second case, it is accompanied by a sound.

How to make an electric arc

You will need:

Television inline transformer without integrated rectifier, two nails, non-flammable dielectric base.

Instruction how to make an electric arc

Step 1:

Discover the distinctive properties of the arc discharge. Firstly, it is continuous. Secondly, it burns at atmospheric pressure or at a pressure above atmospheric. Thirdly, it has the shape of a luminous cord whose center rises under the action of heat. For this reason, the discharge channel accepts arc shape, and therefore, it is called arc. At high intensity discharge heats the electrodes and thermionic emission begins. Then the voltage drop between the electrodes is reduced. An arc always has a negative dynamic resistance and requires current limiting.

Step 2:

Collect the voltage converter on the basis of television flyback transformer. converter circuit to select, depending on the type of your transformer. Sam transformer choose such that he did not have the built-in rectifier (called TDKS will not work). Power converter must not exceed a few watts. In no case do not connect it to any output rectifiers or multiplier. At idle, the inverter must produce voltage of several kilovolts.

Step 3:

Take two ordinary nail. Good fix them on non-flammable dielectric base such that the distance between their island was a few millimeters. Connect them to the inverter is switched off.

Step 4:

Turn on the transmitter. Between the electrodes ignite the arc. Conduct experiments in a ventilated area, since the discharge produces ozone. Do not touch the transducer electrodes and output circuits, do not try to make into an arc fingers and conductive objects.

Step 5:

Try to make the usual arc of the wick paraffin candles. If the power is high enough, it will light up.

Step 6:

Do not do experiments prolonged because the arc creates a noticeable interference. Immediately after the end of the experiment, turn off the transmitter and extinguish a lit candle from the arc.