Direct-current circuits



Second Kirchhoff rule (circuit rule)

Direct-current circuits
Second Kirchhoff rule (circuit rule)

EMF of source
Usrc =
V
current in circuit
I =
A
internal resistance of voltage source
Rint =
Ω
resistance of external circuit
Rext =
Ω

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



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