A 20µF capacitor is connected in series with a 40 kN resistor and the circuit is connected to a 30V d.c. supply • Determine the value of the current (mA) 1.2s after connection, • Determine the value of the capacitor voltage (V) 1.8s after connection, • Determine the the time (s) after connection when the resistor voltage is 18V.

A 20µF capacitor is connected in series with a 40 kN resistor and the circuit is connected to a 30V d.c. supply • Determine the value of the current (mA) 1.2s after connection, • Determine the value of the capacitor voltage (V) 1.8s after connection, • Determine the the time (s) after connection when the resistor voltage is 18V.

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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Concept explainers

Capacitor

The capacitor is an element used to store electrical energy in the electrical field. A capacitor is a form of passive energy.

Question

A 20µF capacitor is connected in series with a 40 kN resistor and the circuit is
connected to a 30V d.c. supply
• Determine the value of the current (mA) 1.2s after connection,
• Determine the value of the capacitor voltage (V) 1.8s after connection,
• Determine the the time (s) after connection when the resistor voltage is
18V.

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