plz send me previous question paper of RRB section Engineer- Electronics ,erpdayal@gmail.com

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What is the gauss`s law?

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What is space charge width?

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in rectifier circuit,we are using the capacitor as a filter to remove the ac signal.but capacitor blocks dc & allows only ac. explain about it?

4 Answers  

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What is the function of BIU?

9 Answers   TCS,

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How receiver detect that which is information signal and which is carrier signal and how it seprate both at destination?

4 Answers   Airtel,

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what is the source of time varying electric feild?

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How does data transfer takes place between memory and input output ports?

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Tell me why the feeding frequency to a microprocessor is twice the operating frequency?

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We use two different bands for GSM/DCS communications; GSM900 and DCS-1800. Which one is the better of the two in terms of quality and coverage?

1 Answers  

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Explain the difference between plc and dcs control system?

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if a PTC having operating voltage 230V is not available then Can we short the circuit where PTC inserted or anybody having other solution. if yes, please reply hurry.

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