The cause of the potential barrier in a $P-N$ diode is
  • A
    Depletion of positive charges near the junction
  • B
    Concentration of positive charges near the junction
  • C
    Depletion of negative charges near the junction
  • D
    Concentration of positive and negative charges near the
[CBSE PMT 1998; RPMT 2001]
art

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