In an unbiased junction, holes diffues from the p- region to n-region because of
the potential differnce across the junction.
the attracttion of free electrons of n-region
the higher hole concentration in p-region than that in n-region
the higher concentration of electrons in the n-region than that in the p-region
Intrinsic semiconductor -
It is a pure semiconductor
e.g. pure Ge, or Pure Si
- wherein
low conductivity
ne = nh
hole will diffuse from higher concentration region to lower concentration region to concentration region i.efropm p to n.
Option 1)
the potential differnce across the junction.
This option is incorrect
Option 2)
the attracttion of free electrons of n-region
This option is incorrect
Option 3)
the higher hole concentration in p-region than that in n-region
This option is correct
Option 4)
the higher concentration of electrons in the n-region than that in the p-region
This option is incorrect