Can the potential barrier across a p-n junction be measured by simply connecting a voltmeter across the junction?

Question

Can the potential barrier across a p-n junction be measured by simply connecting a voltmeter across the junction?,

MARKS App · Accepted Answer

We cannot measure the potential barrier across a p-n junction by a voltmeter because the resistance across depletion layer is smaller than resistance of μ voltmeter so current to measure the potential will not flow in voltmeter and current passes through the junction resistance.

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