A resistance of 2/(t + 20) Q and inductance of 4 H are connected in series to a battery of unknown emf V. If the current is initially zero and is 50 A at the end of 2 seconds, find the unknown emf of the battery.

A resistance of 2/(t + 20) Q and inductance of 4 H are connected in series to a battery of unknown emf V. If the current is initially zero and is 50 A at the end of 2 seconds, find the unknown emf of the battery.

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter17: Resistive-inductive Series Circuits

Section: Chapter Questions

Problem 2PA: You are a journeyman electrician working in an industrial plant. Your task is to connect an inductor...

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Question

A resistance of 2/(t + 20) Q and inductance of 4 H are
connected in series to a battery of unknown emf V. If the
current is initially zero and is 50 A at the end of 2 seconds,
find the unknown emf of the battery.

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