Questions in semiconductor

Select	Question
	Function of rectifier is
	When the P end of P-N junction is connected to the negative terminal of the battery and the N end to the positive terminal of the battery, then the P-N junction behaves like
	If the two ends P and N of a P-N diode junction are joined by a wire
	A potential barrier of 0.50 V exists across a P-N junction. If the depletion region is $5.0 \times {{10}^{-7}}$ m wide, the intensity of the electric field in this region is
	If no external voltage is applied across P-N junction, there would be
	In a PN-junction
	For the given circuit of PN-junction diode, which of the following statement is correct
	On adjusting the P-N junction diode in forward biased
	In the middle of the depletion layer of a reverse-biased PN junction, the
	Barrier potential of a P-N junction diode does not depend on