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ECE · all questions

Electronic Devices And Circuits
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The depletion layer width of Junction

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An intrinsic silicon sample has 1 million free electrons at room temperature. As the temperature is increased

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If too large current passes through the diode

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Which of the following has highest resistivity?

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At room temperature the current in an intrinsic semiconductor is due to

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A transistor has a current gain of 0.99 in the CB mode. Its current gain in the CC mode is

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Assertion (A): A p-n junction has high resistance in reverse direction.
Reason (R): When a reverse bias is applied to p-n junction, the width of depletion layer increases.

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In a bipolar transistor, the base collector junction has

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Work function is the maximum energy required by the fastest electron at 0 K to escape from the metal surface.

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The output, V-I characteristics of an Enhancement type MOSFET has

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The amount of photoelectric emission current depends on

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The sensitivity of human eyes is maximum at

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The sensitivity of human eyes is maximum at

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Which of the following could be the maximum current rating of junction diode by 126?

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Piezoelectric quartz crystal resonators find application where

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In the sale of diamonds the unit of weight is carat. One carat is equal to

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Forbidden energy gap in germanium at 0 K is about

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Assertion (A): A VMOS can handle much larger current than other field effect transistors.
Reason (R): In a VMOS the conducting channel is very narrow.

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In a semiconductor diode, the barrier offers opposition to

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As compared to bipolar junction transistor, a FET

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