תשובות לשאלות

1.                         E_P = 80 J

2.                         R = 400 Ω.

3.                         R₁ / R₂ = 2.

4.                         R = 121 Ω.

5.                         התשובות הן:

                                  ·        P / 2.

                            ·        2P.

                                        ·    4P