Fellow Scientists,
I got in a discussion with a wrench the other day. He is under the
impression that when a PV module is at short circuit current there is no
voltage. My understanding of electricity is that if there's no voltage
there's no current because current needs voltage in order to f
Greg,
All circuits we are working with have resistance and therefore voltage
is required in the circuit. With a shorted module most of the
resistance, and voltage, is within the module itself. A superconductor
could be used externally, connected as close to the module as you like,
and there wo
Greg,
Great question.
All power generators and energy storage devices (batteries, capacitors, etc.)
have what's termed "internal resistance", also termed "internal impedance" when
frequency greater than DC is involved. This resistance/impedance is what
limits the output current of these devic
On 2/5/2011 11:30 AM, Greg Egan wrote:
Fellow Scientists,
I got in a discussion with a wrench the other day. He is under the
impression that when a PV module is at short circuit current there is
no voltage. My understanding of electricity is that if there's no
voltage there's no current bec
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