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

Consider the following circuit. The waveform given in input is as shown. If ${V_{B_1}}$ and ${V_{B_2}}$ are less than the peak value of the input,then the output will look like:

Depletion region in an unbiased semiconductor diode is a region consisting of

In a $p-n$ junction diode,change in temperature due to heating

The curve between charge density $\rho$ and distance $r$ near a $p$ - $n$ junction is best represented by

Write the formula and definition of dynamic resistance and also state their approximate values for forward bias and reverse bias.