Question

During a physics demonstration, a fully charged 98-µF capacitor is discharged through a 125-Ω resistor. How long will it take for the capacitor to lose 75% of its initial energy?
Given that:

U=(q^2) / 2C

q= C*V (1- e^(-t/RC) )


U: is the capacitor's energy
C: is the capacitance
R: is the resistance
q: is the capacitor's charge

Answer 1

1.76ms