Explain how the active power factor correction changes the wave shape of current drawn by a load to improve the power factor?

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why pre and post scalers are used in micro controllers

1 Answers  

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Why bjt is known as current controlled device and fet is known as voltage controlled device?

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difference between USB net modem & GSM interface modem? Can we use usb modem in the place of GSM modem for wireless application? Also tell me Why we use AM for long distance communication but not FM(why do we use frequency reuse concept in FM radi only)

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The electric field in the space charge region decreases with forward bias and increases with reverse bias. Why?

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list the broad classification of adcs.

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What is characteristic of ideal opamp?

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Why is bleeder resistance employed in a filter circuit?

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what is ISDN & its features

2 Answers  

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What are applications of dsp?

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What is the minimum value of tv in msa to calculate r&r?

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what is the difference between forebay and surgetank in case of hydro electric power plant

2 Answers   NEA, Nepal Electricity Authority,

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