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1. Two balls each having a charge of +12uC are 8 cm apart. The electric force is

ID: 2151439 • Letter: 1

Question

1. Two balls each having a charge of +12uC are 8 cm apart. The electric force is approximately_?
a. 0.02 N
b. 40N
c. 404N
d. 202N

2.Consider a circuit where a voltage supply potential difference V0 is connected to three capacitors. Suppose that capacitors C2 and C3 are connected in parallel, and the combination of C2 and C3 are connected in series with capacitor C1 and the voltage supply potential difference V0. IF C1=25uF, C2=20uF, C3=10uF, and the potential differenceV0=21V, determine the energy stored by C2.
a.0.72mJ
b.0.91mJ
c.0.32mJ
d.0.40mJ

Explanation / Answer

F=kq1q2/r^2=202.5 n