In a silicon diode, the current increases from 10 mA to 20 mA when the voltage changes from 0·6 V to 0·7 V. Calculate the dynamic resistance of the diode.

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TextEnergy Bands in SolidsClassification Based on Energy Band TheoryI-V Characteristics of p-n Junction DiodeCBSE PYQ

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How does the energy gap of an intrinsic semiconductor effectively change when doped with a (a) trivalent impurity, and (b) pentavalent impurity ? Justify your answer in each case.

CASE_STUDIESEnergy Bands in SolidsExtrinsic Semiconductors: n-type and p-typeDoping of Semiconductors

Assertion (A) : In a semiconductor, the electrons in the conduction band have lesser energy than those in the valence band. Reason (R) : Donor energy level is just above the valence band in a semiconductor.