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JEE Main · 2024 · 04 Apr 2024 · Shift 2 · Semiconductors

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Which of the diode circuit shows correct biasing used for the measurement of dynamic resistance of p-n junction diode :
  1. (A)(see structure)
  2. (B)(see structure)
    ✓ Correct
  3. (C)(see structure)
  4. (D)(see structure)

Answer: (B)

Solution

To measure the dynamic resistance of a p-n junction diode, the diode must be operated in forward bias, with a voltmeter across the diode and an ammeter (or a variable supply) to change the operating current. Of the four circuits shown, only the arrangement in option (2) connects the diode in the forward direction with the meters placed correctly for this measurement.

JEE Main · 2024 · 04 Apr 2024 · Shift 2 · Single correct option

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