Direct-current circuits



Electric circuit


I
A
Usrc
V
Rint
Ω
Rext
Ω

1. Define values of all variables, besides sought quantity
2. Change units if necessary
3. Click "Calculate"


Direct-current circuits


variables:

I - current
Usrc - EMF of source
Rint - internal resistance of voltage source
Rext - resistance of external circuit



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