48. in an n-type semiconductor n = 1015lcc, m.= m and the donor levels lie below the conduction band by 0.05 ev. find the temperature at which n a53.8 k b. 25.7

48. In an n-type semiconductor N = 1015lcc, m.= m and the donor levels lie below the conduction band by 0.05 eV. Find the temperature at which n A53.8 K B. 25.7 K C 48.2 K D. 61.7K