PhysicsEasy66×since 2002Q6860If the ratio of the concentration of electrons to that of holes in a semiconductor is 75{7 \over 5}57 and the ratio of currents is 74,{7 \over 4},47, then what is the ratio of their drift velocities?A58{5 \over 8}85B45{4 \over 5}54C54{5 \over 4}45D47{4 \over 7}74Check answerSkip