In the circuit in the diagram below the meter M which has the internal resistance R goes to exactly half full-scale deflection (FSD). The shunt resistance is now removed and replaced as a series resistance. Surprisingly, the meter reads the same again, exactly half FSD. Find the resistance R of the meter and hence state the current through the meter at FSD and the voltage across the meter at FSD. 12V 2002 M 2002 R
In the circuit in the diagram below the meter M which has the internal resistance R goes to exactly half full-scale deflection (FSD). The shunt resistance is now removed and replaced as a series resistance. Surprisingly, the meter reads the same again, exactly half FSD. Find the resistance R of the meter and hence state the current through the meter at FSD and the voltage across the meter at FSD. 12V 2002 M 2002 R
Introductory Circuit Analysis (13th Edition)
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Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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Transcribed Image Text:In the circuit in the diagram below the meter M which has the internal resistance R goes to
exactly half full-scale deflection (FSD). The shunt resistance is now removed and replaced
as a series resistance. Surprisingly, the meter reads the same again, exactly half FSD.
Find the resistance R of the meter and hence state the current through the meter at FSD
and the voltage across the meter at FSD.
12V
20Ω
M
200
R
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Step 1: Given information.
VIEWStep 2: Finding the value of source current for shunt connection.
VIEWStep 3: Finding the value of meter current at full scale deflection for shunt connection.
VIEWStep 4: Finding the value of meter current at full scale deflection for series connection.
VIEWStep 5: Finding the value of resistance R of the meter.
VIEWStep 6: Finding the current through the meter at FSD.
VIEWStep 7: Finding the voltage across the meter at FSD.
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