1.Calculate the value of the shunt resistor (R.) that must be connected with the galvanometer in order to convert it into an ammeter that can measure a maximum current of Imax= 0.65 A. IGMAX RG R, = Imax-IGMAX Copper wire: p Copper=1.72x10-8 (2.m), D=0.40 mm 2.Calculate the required length (Ls) of a copper wire that has a resistance R, using : R, A L. = Ls = v m where A = is the wire's cross sectional area and p is its resistivity. 3.Convert the galvanometer into an ammeter by connecting the shunt resistance R, in v with the galvanometer.

1.Calculate the value of the shunt resistor (R.) that must be connected with the galvanometer in order to convert it into an ammeter that can measure a maximum current of Imax= 0.65 A. IGMAX RG R, = Imax-IGMAX Copper wire: p Copper=1.72x10-8 (2.m), D=0.40 mm 2.Calculate the required length (Ls) of a copper wire that has a resistance R, using : R, A L. = Ls = v m where A = is the wire's cross sectional area and p is its resistivity. 3.Convert the galvanometer into an ammeter by connecting the shunt resistance R, in v with the galvanometer.

EBK ELECTRICAL WIRING RESIDENTIAL

19th Edition

ISBN:9781337516549

Author:Simmons

Publisher:Simmons

Chapter27: Service-entrance Equipment

Section: Chapter Questions

Problem 44R

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