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earth wire...

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siya
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PostSubject: earth wire... Thu Mar 12, 2009 6:56 pm

y is it necessary 2 have n earth wire installed in a power circuit but not in a lightnin circuit?
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QUEST
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PostSubject: Re: earth wire... Thu Mar 12, 2009 8:01 pm

question is quite out of context.
First of all entire wiring circuit is earthed, s there is no question of having seperate earthed and non earthed connection.both power n lighting r earthed

but i guess the maker of this question is expecting the answer as follows:

as earthing prevents electrical shocks, there is higher probability of a person getting a shock frm a power connection if it is not earthed,whereas if lighting circuit is nt earthed it will damage only the lighting device , wil nt gv electrical shock to any person
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Midhun Sarath
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PostSubject: Re: earth wire... Thu Mar 12, 2009 9:33 pm

New Knowledge .. acutally... out of syllabus ... ? tnx quest Very Happy
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siya
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PostSubject: Re: earth wire... Thu Mar 12, 2009 10:10 pm

thanx quest...well..who says it is out of syll...dis question is given in concise...
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Midhun Sarath
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PostSubject: Re: earth wire... Thu Mar 12, 2009 10:12 pm

is ur consice .. updated edition ???
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Complete IIT AIEEE ICSE ISC PMT help forum :: Physics :: Physics Question answer-