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calculate the value of dc current read by ammeter.?
A Bridged rectifier uses diode with forward resistance of 20 ohms. the signal voltage is V=230 sinxt. The bridge output is fed to a dc ammeyer of negligible resistance through an external resistance of R=50 ohms.
(a) calculate the value of dc current read by ammeter.
(b) Sketch the waveform of the current through the ammeter and mention its peak value.
(c) Find the reading of this ammeter if it is an r.m.s meter?
Check out the following and take out what you need:
http://www.work.com/ammeters-13755/
http://www.farwst.com/fwst/instrum/fluke06.htm
http://www.tutorvista.com/search/ammeter
http://www.allaboutcircuits.com/vol_2/chpt_12/1.html
http://www.enginova.com/true_rms_volts.htm
http://support.fluke.com/find-sales/Download/Asset/1260729_D_w.pdf
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