Answered: The voltage across a 2-H inductor is 20…

The voltage across a 2-H inductor is 20 (1 – e-2) V. If the initial current through the inductor is 0.3 A, find the current and the energy stored in the inductor at t = 1 s.

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter24: Resistive-inductive-capacitive Parallel Circuits

Section: Chapter Questions

Problem 1RQ: An AC circuit contains a 24 resistor, a 15.9-mH inductor, and a 13.3F capacitor connected in...

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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

The voltage across a 2-H inductor is 20 (1 – e-21) V. If the initial current through the inductor is 0.3 A, find the current and the
energy stored in the inductor at t = 1 s.

Expert Solution

Step 1

Given,

L=2H

$v (t) = 20 (1 - e^{- 2 t})$

$i (0) = 0.3 A$

where L is the inductance, v(t) is the expression of voltage across inductor and $i (0)$ is the initial current through inductor.

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