silicon doped with electron rich impurity forms ………. .

which of the following statements are true about semiconductor ? (a)silicon doped with electron rich impurity is a p-type semiconductor (b)Silicon doped with an electrons rich impurity is an n-type semiconductor (c)Delocalised electrons increase the conductivity of doped silicon (d)An electron vacancy increase the conductivity of n- type semiconductor

A semiconductor is doped with a donor impurity

A semiconductor is doped with a donor impurity

A semiconductor is doped with a donor impurity

Silicon doped with gallium forms