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Hi, I'm working on a biology project at my high school. I'm raising
worms in a small tank of dirt (about 1.5 feet long 1 foot tall 1 foot
wide). I heard worms could be drawn up through the soil by passing an
electric current through it. Here's my problem, I tried using my
teachers power supply connected to two iron nails in the damp soil. The
power supply plugs into the wall and provides from 0-20 volts either AC
or DC to the probes. I don't know an exceptional amount about
electricity but I used a voltage meter to measure the voltage passing
through the soil. I measured 10 volts through the soil when the supply
was set to its highest (20 volts). Is this sufficient information to
calculate current?
I was only able to draw up one worm with this weak amount of energy. I
understand it is current and not voltage that will be the determining
factor here. I would like to design a power supply of my own. I have a
transformer that is labeled with input 120 volt and output 24 volt. If
I use this what will the current be? Is it safe relatively safe? I
would like to give the worms a good shock without using something
capable of killing a human. What is the power range I'm looking for
and what do I need to get it there (just a transformer or more)?
Should I rectify the output?
All responses greatly appreciated, thank you.
worms in a small tank of dirt (about 1.5 feet long 1 foot tall 1 foot
wide). I heard worms could be drawn up through the soil by passing an
electric current through it. Here's my problem, I tried using my
teachers power supply connected to two iron nails in the damp soil. The
power supply plugs into the wall and provides from 0-20 volts either AC
or DC to the probes. I don't know an exceptional amount about
electricity but I used a voltage meter to measure the voltage passing
through the soil. I measured 10 volts through the soil when the supply
was set to its highest (20 volts). Is this sufficient information to
calculate current?
I was only able to draw up one worm with this weak amount of energy. I
understand it is current and not voltage that will be the determining
factor here. I would like to design a power supply of my own. I have a
transformer that is labeled with input 120 volt and output 24 volt. If
I use this what will the current be? Is it safe relatively safe? I
would like to give the worms a good shock without using something
capable of killing a human. What is the power range I'm looking for
and what do I need to get it there (just a transformer or more)?
Should I rectify the output?
All responses greatly appreciated, thank you.