The start of that video reminds me of a little rhymeI learned from an old electrician many years ago, illustraring the relative dangers of voltage and current. ITS THE VOLTS THAT JOLTS BUT THE MILLS THAT KILLS On 22 November 2013 13:11, Ruben J=F6nsson wrote: > > But if the amps are too high then sometimes > > it can make a resistor get quite hot, I noticed. (I wondered which > would make > > it hotter, by increasing the amps or increasing the volts. ) > > > > What makes the resistor hot is Watts, which is the product of Volts and > Amps. > > In a given circuit, you can't increase the Amps without also increasing t= he > Volts. > > The Amps dial on your power supply is to limit the maximum output current= , > sort > of a short circuit protection. The resistance in your circuit together > with the > Volts dial results in an output current. If this current goes above the > Amps > dial setting (the resistance is too low or the voltage is too high), the > output > voltage will be reduced to keep the current below the Amps setting. > > > /Ruben > > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D > Ruben J=F6nsson > AB Liros Electronic > Box 9124 > 200 39 Malm=F6 Sweden > www.liros.se > Tel +46 40142078 > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D > > -- > http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > --=20 __________________________________________ David C Brown 43 Bings Road Whaley Bridge High Peak Phone: 01663 733236 Derbyshire eMail: dcb.home@gmail.com SK23 7ND web: www.bings-knowle.co.uk/dcb --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .