Figure Q2(a) shows a circuit configuration of DC ammeter by using PMMC instrument. Determine and analyze the following: i You are required to modify a PMMC instrument with a full-scale deflection current of 2 mA into a 0-150 mA ammeter application. Given the internal resistance, Rm of the meter is 100 2, find the required shunt resistor, Rsh need to be installed into the circuit. i By using the modified circuit as in (i), you are required to improve that circuit which capable to measure a current up to 1 A. What will be the value of the new shunt resistor? Hint: add up a new shunt resistor with original Rsh is maintain.
Figure Q2(a) shows a circuit configuration of DC ammeter by using PMMC instrument. Determine and analyze the following: i You are required to modify a PMMC instrument with a full-scale deflection current of 2 mA into a 0-150 mA ammeter application. Given the internal resistance, Rm of the meter is 100 2, find the required shunt resistor, Rsh need to be installed into the circuit. i By using the modified circuit as in (i), you are required to improve that circuit which capable to measure a current up to 1 A. What will be the value of the new shunt resistor? Hint: add up a new shunt resistor with original Rsh is maintain.
Delmar's Standard Textbook Of Electricity
7th Edition
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Stephen L. Herman
Chapter30: Dc Motors
Section: Chapter Questions
Problem 6RQ: What is CEMF?
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