Question

13. RC circuit A RC circuit has a resistor of 100k and a capacitor of 2004. What is the time constant? (5) 2. Figure 3 shows the voltage across a capacitor versus time in a RC-circuit experiment. (5) The applied voltage to the capacitor is V-6. What is the estimated time constant for this capacitor? a) 1-50 b) 50-100s c) 100-150 d) 200-250 e)300-350s Figure 3: Voltage versus time for a capacitor. 3. Working Problem (show all your work!) Figure 4 shows voltage versus time for a discharging capacitor, Choosing the "Exponential" fit option in Excel: yy.exp(-ax) gives the result: a 0.009 and yv-2.98 Voltage o 50 100 200 250 300 150 Time (s) Figure 4: Voltage versus time for a discharging capacitor. a) What is the time constant of this RC-Circuit (10) Show all the calculation ! Bonus: Assume the initial voltage of the capacitor is 3 Volt and the capacitor has a time constant of 150s. A what time does the capacitor reach 50% of its initial voltage. Show all steps of your calculation!!(10)

Answer 1

Solution xor ahueshion ondy Hee, We snall Solve the lime Coastant of an Rc chcuit is given by RC = (100 Kn) 200 ue) 100* 10)C200 10) 20 Seconds 1 Anow Thaaks

THANKS