# growth and decay problem

**Question description**

The current i amperes flowing in a

capacitor at time t seconds is given by

i =8.0(1−e−t CR ), where the circuit resistance R is

25×103 ohms and capacitance C is

16×10−6 farads. Determine (a) the current i after

0.5seconds and (b) the time, to the nearest

millisecond, for the current to reach 6.0A. Sketch

the graph of current against time.

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