how to design an ups and battery connections for ups .

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Define what is meant by fermi level in semiconductor? Where does the fermi level lie in an intrinsic semiconductor?

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Which slot is reserved for GPRS?

1 Answers   NSN,

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What is the main drawback of a single phase half bridge inverter?

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What is the difference between power diode and signal diode?

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For a type a chopper (first quadrant), express the following variables as a function of vs, r and duty cycle
in case the load is resistive average output voltage and current?

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what do u understand by telecommunication?

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What is snooping cache?

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What is the necessity to use the special machines?

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Why do we use distinct polarisation (UL-H:DL-V) while uplinking and downlinking rather than same (UL-H:DL-H)?

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in case of a bipolar junction transistor we are concerned with Vbe,,,Vce(in order to stabilise optiamally)but why don't we bother about Vbc?? why ?

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need previous placement test papers of infosys and soctronics

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