A PN- junction has a thickness of the order of(a) 1cm(b) 1mm(c) 10⁻⁶ m(d) 10⁻¹² cm
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answer : option (c)
explanation : This question is based on semiconductor chapter of class 12th.
if you know, PN - junction : when P- type semiconductor is mixed with N - type semiconductor, PN - junction is formed.
There is very small region { which is in order of micro metre } . this region is known as depution region.
so, the thickness of PN - junction { depletion region } is in order of 10^-6 m.
hence, (c) is correct choice.
explanation : This question is based on semiconductor chapter of class 12th.
if you know, PN - junction : when P- type semiconductor is mixed with N - type semiconductor, PN - junction is formed.
There is very small region { which is in order of micro metre } . this region is known as depution region.
so, the thickness of PN - junction { depletion region } is in order of 10^-6 m.
hence, (c) is correct choice.
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