Kris TD
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Registered: 25th Mar 02
Location: Ware, Hertfordshire
User status: Offline
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hey im stuck on a couple of questions for my uni work, they are quite simple, but hey, lol
1. a coil of wire takes 10 A from a 100 V dc supply. when connected to a 50hz ac supply of 100v it only takes 5 A. calculate the inductance of the coil.
is it:
a) 17.32 mH
b) 55.3 mH
c) 31.8 mH
d) 63.65 mH
2. what ac supply voltage is required if a half - wave recifier is to be used to drive a 24v dc motor at full speed?
a) 75.4 V
b) 53.3 V
c) 24v
d) 33.94v
cheers people, any help is much appreciated.
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Dave Hay
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Registered: 10th Apr 02
Location: Aberdeenshire
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i really should know the answers but i nmever did like electrical modules in myu mechanical engineering degree
sorry m8
also inductance sucks lol and rectifiers
nae luck m8!
fancy doing my exams for me in a fortnight and ill have a crack at your work?
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Kris TD
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Registered: 25th Mar 02
Location: Ware, Hertfordshire
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exactly, this is a retake module from last year, already fcuked it up once, lol
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scottscorsa
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Registered: 24th Apr 02
Location: Scotland,Greenock
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I really should know this , I have the amswers in the house along with 1000 other electronics equation I had to do , have u done Thevenins or the Norton theorom yet ??
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Kris TD
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Registered: 25th Mar 02
Location: Ware, Hertfordshire
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done thevenins. ive just been given the work but not gone to the lectures becasue they clash with more important ones from this year.
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Kris TD
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Registered: 25th Mar 02
Location: Ware, Hertfordshire
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question 1 is D
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3CorsaMeal
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Registered: 11th Apr 02
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i reckon 2 is C,
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pringle
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Registered: 4th Mar 03
Location: planet oz(somewhere with women)
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2 is c a think mate, mind a aint gid a electrics
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Kris TD
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Registered: 25th Mar 02
Location: Ware, Hertfordshire
User status: Offline
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question 2 is 53.3 i think.so b.
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pringle
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Registered: 4th Mar 03
Location: planet oz(somewhere with women)
User status: Offline
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shows how gid i am ay mate
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