windozeuser
Member
Today in class, me and my friends were fooling around with this 120VAC primary, to a center-tapped 12VAC secondary transformer. I pulled out a 9 volt battery, and connected it to the secondary winding. My friend was holding onto the primary. I quickly connect and disconnect the 9 volt battery, and his hands fly back in pain. Apparently, we got almost 70 volt spikes
The battery quickly became super hot, and began to emit smoke. My question is, when the transformer steps up voltage (step up transformer); does it lower the current to make up for the higher voltage, or is the current the same?
Wouldn't this be limited by the ampere-hours of the battery? I've even seen it arc, how is this possibly at 9 volts? (note the arcing wasn't on the primary (where it is stepped up)).
This reminds me of the old capacitor throwing in school :wink:. I was thinking about driving the transformer with a 555 timer and make a mini stun gun.
This actually began as a debate with my teacher; that didn't beleive we could give him a huge jolt from a 9volt battery. Let me tell you that some Electronics Technicians are very naive :wink:
Thanks
The battery quickly became super hot, and began to emit smoke. My question is, when the transformer steps up voltage (step up transformer); does it lower the current to make up for the higher voltage, or is the current the same?
Wouldn't this be limited by the ampere-hours of the battery? I've even seen it arc, how is this possibly at 9 volts? (note the arcing wasn't on the primary (where it is stepped up)).
This reminds me of the old capacitor throwing in school :wink:. I was thinking about driving the transformer with a 555 timer and make a mini stun gun.
This actually began as a debate with my teacher; that didn't beleive we could give him a huge jolt from a 9volt battery. Let me tell you that some Electronics Technicians are very naive :wink:
Thanks