What will be conductivity of pure silicon crystal at 300 K temperature. If electron hole pairs per cm 3 is 1.072 × 1010 at this temperature, μ n =1350 cm 2 / volt - s and μ P =480 cm 2 / volt-s

Question

What will be conductivity of pure silicon crystal at 300 K temperature. If electron hole pairs per cm 3 is 1.072 × 1010 at this temperature, μ n =1350 cm 2 / volt - s and μ P =480 cm 2 / volt-s (A) 3.14 × 10-6 mho / cm (B) 3 × 106 mho / cm (C) 10-6 mho / cm (D) 106 mho / cm

Tardigrade Admin · Accepted Answer

σ=en (μ e +μ n ) =1.6 × 10-19 × 1.072 × 1010 ×(1350+480) =3.14 × 10-6 mho / cm

Q. What will be conductivity of pure silicon crystal at $300 K$ temperature. If electron hole pairs per $c m^{3}$ is $1.072 \times 1 0^{10}$ at this temperature, $μ_{n} = 1350 c m^{2} / v o lt - s$ and $μ_{P} = 480$ $c m^{2} /$ volt-s

$3.14 \times 1 0^{- 6} mh o / c m$

$3 \times 1 0^{6} mh o / c m$

$1 0^{- 6} mh o / c m$

$1 0^{6} mh o / c m$

$σ = e n (μ_{e} + μ_{n})$
$= 1.6 \times 1 0^{- 19} \times 1.072 \times 1 0^{10} \times (1350 + 480)$
$= 3.14 \times 1 0^{- 6} ℧ / c m$

Q. What will be conductivity of pure silicon crystal at 300K temperature. If electron hole pairs per cm3 is 1.072×1010 at this temperature, μn​=1350cm2/volt−s and μP​=480 cm2/ volt-s

3.14×10−6mho/cm

3×106mho/cm

10−6mho/cm

106mho/cm