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You can make a transformer from magnetic
wire and an iron rod. Understand that
magnet wire, although it looks bare,
basically has an enamel coating for the
outside that serves as padding. Enamel
is utilized on magnet wire in order that the
insulation is very thin and the coil of wire
may be compacted in a smaller space,
little gauge cable and make it melt,
which is a very good example of what sort of
fuse performs, but could cause you to obtain an
electric powered shock, or simply be used up!
A low ac electricity AC electric power source is required
for this project. Use a variable power
source such as a Variac at 3 volts, or if one particular
is unavailable, try two 12 watt
transformers in series with each other.
Wrap the wire throughout the iron (or steel)
pub. Make two separate coils, each having a
different number of turns from the wire.
One of these will be the secondary and the
other the primary. The inductive copy
will be greatest if the shelves of line are while
close together as is possible.
Warning! You will have to use a very low
voltage ALTERNATING CURRENT power supply just for this project.
An excessive amount of current movement will heat the
A longer wire in the primary will present
more resistance than a brief one, because the
resistance in the wire depends upon its
diameter and its size. According to
Ohm's Rules, current is actually a function of
resistance and current in the formula
I=E/R, so a lower value of E, and a higher
value of Ur will result in much less current circulation.
The heating of the transformer coil and its particular
possible failing results from a higher current
(larger number of bad particals flowing) and so
limiting the latest flow is important to
making the project safe.
A transformer with at least 50 converts of
#20 gauge magnet wire in the primary,
and 30 transforms in the supplementary should
First, make an effort the transformer with a D cell
Use some jumper wires to
connect the secondary causes a VOM set
to the lowest AC voltage...
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