In an unbiased p-n junction, holes diffuse from the p-region to n-region because

In liquids the molecules are less free than in gas i.e. intermolecular forces in liquid are greater than in gas.

The child may put his/her fingers into the socket and he/she may get an electric shock which could be fatal.

Elementary events associated to random experiment of tossing three coins are HHH , HHT, HTH ,THH , HTT,THT,TTH ,TTT Total number of elementary events = 8. (i) The event getting all heads is said to...

Here S = {HHH, HHT, HTH, THH, TTH, THT, HTT, TTT} (i) Favourable number of elementary events = 3          [HHT, HTH, THH] ∴ P (two heads) = 3/8 (ii)...

(c) :- When p-n junction diode is forward biased, both the depletion region and barrier height are reduced.

The correct answer is (A) In ccp, O2– ions are 4. Hence total negative charge = –8 Let Al3+ ions be x, and Mg2+ ions be y. Total positive charge = 3x + 2y ⇒ 3x...

The correct answer is (b) np =ne.

(a) if the junction is forward-biased

(d) ''base'' and base.

Formation of depletion layer:  At the junction there is diffusion of charge carriers due to thermal agitation; so that some of electrons of n-region diffuse to p-region while some of holes...