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I need some help in debugging a classroom demo illustrating a
transformer. I don't have an actual transformer, I am attempting to
use two coaxial solenoids.
First I connected a (200 turn, approx.) solenoid (about 10 cm. long)
to 6.3 V AC. I nested a second (approx. 100 turn) solenoid of the
same length inside the first. Across this solenoid I connected a
light bulb. I don't know the specs on the light bulb; it is
actually a light box used in optics experiments. It works just fine
when connected individually to the 6.3 V AC supply. When the power
suppply is turned on nothing happens except that after a few seconds
the circuit breaker in the power supply trips.
Next I added a second light box in series with the primary solenoid
to prevent the current from becoming too high.
What I want to do is to light the light bulb in the secondary by an
induced voltage from the primary. I must be overlooking/ignorant of
something important here.
Any suggestions?
Justin Parke