What is the difference between power diode and signal diode?

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What are the three services offered by GSM? Explain each of them briefly.

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Which range of signals are used for terrestrial transmission?

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what is purpose of use stug.

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Tell me how to calculate knee point voltage? Describe its purpose for differential protection.

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why do we need time domain & frequency domain.Differentiate between them.

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charge at rest result in e.f and charge in motion result in m.f then how can an accelerated charge give rise to emf wave? then there should be no e.f due to acc charge as it rise from charge at rest?

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Why TV transmission is carried out in the UHF and VHF bands?

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A half wave rectifier is used to supply 50vdc to resistive load of 800ohms the semiconductor diode has a forword resistance of 25ohms,calculate ac voltage required?

1 Answers   TCS,

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what is ups and inverters.

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i want RRB chennai section engineer model papers &previous years papers including GK, ARITHEMETIC, REASONING, GENERAL ENGLISH IN THE YEAR 2005,2006,2007, 2008.

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Suppose if there is the level of impurity in p-type & n-type semiconductor of pn junction diode is different then what effect on depletion?

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