Analog Electronics
When P-type substance is connected with positive and N-type is connected with negative terminal then P-N junction diode is in ....................

None of these
 No biased
 Forward biased
 Reverse biased

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Analog Electronics
The typical input stage of an opamp has a

  single - ended input and single-ended output.
  differential input and single - ended output.
  single - ended input and differential output.
  differential input and differential output.

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