Health and Beauty: Energizer A23 Battery, 12 Volt - 2 Pack - Energizer Batteries
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12V Door Bell Popular Q&A
Q: A small transformer used for a doorbell steps down the voltage fr...
A: V1 / V2 = I2 / I1. 120 V / 12 V = I2 / 0.5 A. 10 = I2 / 0.5A. I2 = 10 * 0.5 A = 5 A. Current flow to doorbell = 5 A. Read More »
Q: A small transformer used for a doorbell steps down the voltage fr...
A: 0.05 Ampere. Edit: V= IR = I = V/R. So, if V=V/10, I = I/10. At 5 amp current the bell would catch fire! Read More »
Q: Does this matter? doorbell 8 v bell on 12v transformer
A: Thanks for replies - didn't measure voltage, just read '8v' on bell and 12v on tranny. Customer is a bit deaf so loudness not a problem. The distance is prob ab... Read More »
Q: The electromagnet in a doorbell operates on a 12 V circuit with 5...
A: a) The magnetic field is proportional to the current and the number of turns. If you decrease the number of turns by 20%, you need to increase the current by 20... Read More »
Q: Can a 12v a27 battery replace a 12v a23 battery in doorbell?
A: the a27 is an upgrade to the a23. Read More »
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