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NEETPhysicsSemiconductors

Which of the following statements is true regarding measuring the potential barrier across a p-n junction using a voltmeter?

Options

  1. AYes, as the voltmeter automatically adjusts to the junction's resistance.
  2. BNo, because the voltmeter must have a resistance very high compared to the junction resistance, the latter bei
  3. CYes, as the potential barrier can be directly read from the voltmeter's display.
  4. DNo, because the potential barrier is not a measurable quantity using a voltmeter.

Correct answer

B. No, because the voltmeter must have a resistance very high compared to the junction resistance, the latter bei

Step-by-step solution

Correct Option is : (B) No, because the voltmeter must have a resistance very high compared to the junction resistance, the latter being nearly infinite.

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