Science and Mathematics for Engineering 6th Edition by John Bird

Exercise 19

Evaluate v given: $v = E \left( 1 - e ^ { - \frac { t } { C R } } \right) v$ olts when $E = 100 \mathrm {~V} , C = 15 \mu \mathrm { F } , \mathrm { R } = 50 \mathrm { k } \Omega$ and $\mathrm { t } = 1.5 \mathrm {~s}$ .
Also, determine the time when the voltage is $60 \mathrm {~V}$ .