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In an extrinsic semiconductor, the number density of holes is \(4 \times 10^{20} m ^{-3}\). If the number density of int…

Q1

In an extrinsic semiconductor, the number density of holes is \(4 \times 10^{20} m ^{-3}\). If the number density of intrinsic carriers is \(1.2 \times 10^{15} m ^{-3}\), the number density of electrons in it is

a

\(1.8 \times 10^9 m ^{-3}\)

b

\(2.4 \times 10^{10} m ^{-3}\)

c

\(3.6 \times 10^9 m ^{-3}\)

d

\(3.2 \times 10^{10} m ^{-3}\)

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