## Exercise 4.4 A

Determine the electromotive force (emf) of the unloaded battery and short-circuit current.

Tip: Move results to the (I, U) coordinate system, $U=E-R_{s}I$
Answer: The emf of the unloaded battery is 1,48 V and short-circuit current is 3,67 A

## Exercise 4.4 B

Determine the electromotive force (emf) of the unloaded battery and short-circuit current.

Move results to the (I, U) -coordinate system, $U=E-R_{s}I$
Answer: $E=1,58 V$
$I_{short-circuit}=6,28 A$