The boron-doped Si ingot must exhibit a specific resistance of 10.0 Ω⋅cm. During the growth silicon of 0.01 Ω⋅cm resistivity is loaded to 10 kg of pure silicon melt. How much of silicon with 0.01 Ω⋅cm resistivity is necessary? ke = 0.8 (B) (effective segregation coefficient), μl = 150 cm^2 / Vs; μk = 500 cm^2 / V