We all know about DC concept,i.e +ve connected to +ve ,-ve connected to -ve. If landline phones lines are dc lines,then how it works even if the polarties are interchanged??

1 Answers   Infosys,

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which book is better for rrb examination?

0 Answers  

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what is trimmercapacitance

3 Answers  

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I am importing dc-dc converters from singapore to india. how much tax will be applicable towards Custom duty.and the rates of the custom duty.

0 Answers  

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what is frame structher in SDH .

0 Answers  

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please send me rrb gorakhpur je teli question paper

0 Answers  

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pitch frequency of female?

1 Answers  

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what is the function of TRU and how it works and how many calls it will take at a time?

0 Answers   TalentPro,

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how can I pass ccna in first try in one month

0 Answers  

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why video is AM but audio is FM modulated in TV?

3 Answers  

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the maximum spectral response of the germanium and silicon is in the ?

3 Answers   BSNL, HCL,

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Tell me what is the max. Or min . Value of tv in msa to calculate r&r?

0 Answers  

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