A moving-coil instrument gives full-scale deflection with 25 mA. The resistance of the coil is 5 ohm. It is required to convert this meter into an ammeter to read up to 5 A. Find (a) the resistance of the shunt to be connected in parallel with the meter, and (b) the value of series resistance for the above meter to read up to a voltage of 20 V.

A moving-coil instrument gives full-scale deflection with 25 mA. The resistance of the coil is 5 ohm. It is required to convert this meter into an ammeter to read up to 5 A. Find (a) the resistance of the shunt to be connected in parallel with the meter, and (b) the value of series resistance for the above meter to read up to a voltage of 20 V.

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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