Switch S Is Closed to Apply a Potential Difference V

question 43

Multiple Choice

Switch S is closed to apply a potential difference V across a p-n junction as shown.Relative to the energy levels of the n-type material, with the switch open, the electron levels of the p-type material are:

• A)unchanged
• B)lowered by the amount e^-Ve/kT
• C)lowered by the amount Ve
• D)raised by the amount e^-Ve/kT
• E)raised by the amount Ve

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