If R = 3.0 k?, C = 5.0 mF, ? = 6.0 V, Q = 15 mC, and I = 4.0 mA, what is the potential difference Vb ? Va?
a.
?3.0 V
b.
+9.0 V
c.
?15 V
d.
+21 V
e.
?6.0 V
a
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