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Ammeter
Ammeter is used to measure
current I
in an electric circuit. In case of
voltmeter,
no ammeter can ever be ideal, and therefore all ammeters
have some small internal resistance. An ideal ammeter has a
zero resistance so that circuit in which it is kept is not
disturbed.
In More Simple terms an
ammeter is an electronic device that detects an
electric current
.With materials listed below, you can build your own ammeter
and use it to measure current produced by batteries
including home batteries and generators.
Material required to make
ammeter
-
Magnet wire, 10 meters or
more of 22 gauge or higher,
-
two small disk magnets (1
cm diameter)
-
thread
-
a cardboard tube
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a Base, a piece of
corrugated cardboard about 10 cm x 10 cm
Hot melt glue (or staples)
-
Aluminum foil, two 5 cm
squares
-
Tacks or pushpins
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Two alligator clip leads
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Sandpaper
-
AA battery
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