anexa 2.
1. Rs = R1 + R2
2. 1/Rp = 1/R1 + 1/R2
3. P= L / t
4. I = E / ( R + r )
5. I = U / R
6. Isc = E / r
7. Q = I^2 x U x t / I (x ala e inmultire )
anexa 3.
1. ohm Ω
2. volt V
3. amper A
4. joule J
5. watt W
6. joule J
