Question

Which of the following must be zero in an unbiased PN junction diode?

• A. Current due to majority charge carriers (both electrons and holes)
• B. Current due to minority charge carriers (both electrons and holes)
• C. Current due to majority and minority charge carriers
• D. Current due to majority and minority charge carriers (only holes)

Answer 1

The correct option is C Current due to majority and minority charge carriers

In an unbiased p-n junction, there is no applied emf across the diode and hence no current flows due to minority or majority carriers.