EMF of the current source = 36 V, its resistance = 4 0m. What is the short-circuit current of the source?

The current strength will be determined by Ohm’s law
I = U / R.
Resistance R is the sum of the internal resistance of the current source and the load resistance
R = Rb + Rn;
I = U / (Rv + Rn).
With a short circuit, the load resistance is zero, therefore
I = 36 / (4 + 0) = 36/4 = 9.
Answer: short-circuit current strength 9 A.

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