Answer
$$0.0108~mA$$
Work Step by Step
We use the given decay formula:
$$i=0.025e^{-0.175t}$$
Where $t$ is the time ($4.80~ms$).
By substitution, we have $$i=0.025e^{-0.175t}=0.025e^{-0.175\cdot 4.8}\approx 0.0108~mA$$
Elementary Technical Mathematics
by Nelson, Robert; Eren, Dale;
Published by
Brooks Cole
ISBN 10:
1285199197
ISBN 13:
978-1-28519-919-1
Appendix B - Exponential Equations - Exercise - Page 577: 27
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