A charge of 6.7 � 10-15 coulombs is located at a point where its potential energy is 5.6 � 10-12 joules. what is the electric potential at that point?
a. 2.3 � 102 volts
b. 4.7 � 102 volts
c. 8.4 � 102 volts
d. 9.2 � 102 volts