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In a P-N junction, there is no appreciable current if.....

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  1. a potential difference is applied across junction making P section negative and N-section positive
  2. it is impossible
  3. a potential difference is applied across the junction
  4. P-section is a made positive and N-section negative

    Answer:The correct answer is: a potential difference is applied across junction making P section negative and N-section positive

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