Design a simple charging circuit using a 100 V source, a 1M resistor and a capacitor. The circuit requires that the capacitor be charged to 50 V in 20 seconds after being fully discharged. a) Show the layout of the circuit. b) Find the desired time constant, T. c) Calculate the capacitance of the capacitor. d) Sketch the capacitor voltage from 0 to 5t.

Delmar's Standard Textbook Of Electricity
7th Edition
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Stephen L. Herman
Chapter20: Capacitance In Ac Circuits
Section: Chapter Questions
Problem 5PP: Three capacitors having capacitance values of 20F,40F, and 50F are connected in parallel to a 60 -...
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Design a simple charging circuit using a 100 V source, a 1M resistor and a capacitor. The circuit
requires that the capacitor be charged to 50 V in 20 seconds after being fully discharged.
a) Show the layout of the circuit.
b) Find the desired time constant, T.
c) Calculate the capacitance of the capacitor.
d) Sketch the capacitor voltage from 0 to 5t.
Helpful Relations
-t
V = IR; eT; x = ln(ex); T = RC
Transcribed Image Text:Design a simple charging circuit using a 100 V source, a 1M resistor and a capacitor. The circuit requires that the capacitor be charged to 50 V in 20 seconds after being fully discharged. a) Show the layout of the circuit. b) Find the desired time constant, T. c) Calculate the capacitance of the capacitor. d) Sketch the capacitor voltage from 0 to 5t. Helpful Relations -t V = IR; eT; x = ln(ex); T = RC
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