1.

Consider the following RC circuit. The capacitor has an initial charge q0 such that it opposes the flow of charging current:The response of the circuit i(t) will be

A. \(\left( \frac{E}{R}-\frac{{{q}_{0}}}{RC} \right){{e}^{-\frac{t}{RC}}}\)
B. \(-\frac{{{q}_{0}}}{RC}{{e}^{-\frac{t}{RC}}}\)
C. \(\frac{E}{R}\;{e^{ - \frac{t}{{RC}}}}\;\)
D. \(\left( {\frac{E}{R} + \frac{{{q_0}}}{{RC}}} \right){e^{ - \frac{t}{{RC}}}}\)
Answer» B. \(-\frac{{{q}_{0}}}{RC}{{e}^{-\frac{t}{RC}}}\)


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