Physics 2212
Final exam (practice problems)
1. Find the power delivered to 8 ohm resistor if the batteries are connected to the circuit for
a long time.
2. Three identical particles with charge 10 µC each are placed at the vertices of a triangle
as shown in the figure. All three particles are released from the rest. Find the maximum
speeds of the particles. The mass of each particle is 100 g.
5 Ω 10 Ω
15 Ω
7 Ω 8 Ω
10 V 5 V
25 V
10 µF
5 Ω
10 cm
10 cm
10 cm
0.89 W
13.4 m/s
