P. 4033. Three cells are connected in series. Their electromotive forces are 2 V, 10 V, and 5 V; their internal resistances are 0.2 , 0.3 , and 0.5 . Calculate the voltage across the third cell and graph this terminal voltage as a function of the external resistance connected to the circuit.

(4 points)

Deadline expired.

Statistics on problem P. 4033. 87 students sent a solution. 4 points: 54 students. 3 points: 18 students. 2 points: 10 students. 0 point: 2 students. Unfair, not evaluated: 3 solutions.