What does a tristate signal in electronics signify?

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The function of a transistor used in any of the ics is to perform switching action and not amplification. Then why diodes are not used instead of transistors as diodes also exhibit the same switching action?

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Explain why the aspect ratio of tv video display is 4:3 or 16:9? Why not it is any other?

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hi.. i m a fresher in ECE 3rd yr how 2 face the campus placement in any mnc company and what to prepare please mail me in detail.

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Why is silicon preferred to germanium in the manufacturing of semiconductor devices?

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What are the different ways to check LED light/bulb?

3 Answers   Infosys,

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HAVE ANY ONE LIST OF THE FORMULAS WHICH ARE USED TO SOLVE SOLUTION OF THE DEVICES (DIODE,TRANSISTOR,CAPACITOR,FET,MOSFET)?

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why we use external oscillator in 8051 microcontroller ??

2 Answers   Infosys,

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What is the gross data rate of GSM?

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can u send me ttq upto 2008 on my email id pooja_bora18@yahoo.com.sorry for the trouble.

0 Answers   BSNL,

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Describe the difference between p-type and n-type semiconductor materials.

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Why temperature coefficient of resistance of a semiconductor is negative?

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