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posted by  damulag on 10/12/2008 3:43:35 AM  |  status: Live  

Network analysis 1 - PLEASE HELP ME....... Thank you!!

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9. determine the series resistance needed to convert a galvanometer to a voltmeter reading 15V on full scale deflection if a current of 2.5mA causes full scale deflection and the resistance of the coil is 10 ?.

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posted by Shree_vani on 10/12/2008 5:33:45 AM  |  status: Live
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"thank you!!"
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Data given
Galvanometer resistance Rm = 10Ω
Full scale deflection current Ifs = 2.5mA
Voltmeter range V = 15V
 
To find series resistance Rs
V = Ifs (Rs + Rm)
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