A one-sided abrupt pn junction diode has a depletion capacitance of 50 pF at a reverse bias of 0.2 V. The plot of versus the applied voltage for this diode is a straight line as shown in the figure below. The slope of the plot is ____ .
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Axes: vertical axis labeled 1/C_D^2, horizontal axis labeled V, origin marked 0. A solid straight line with negative slope runs from the upper-left down to where it crosses the vertical (1/C_D^2) axis at a positive value; from that crossing point it continues as a dashed line with the same slope down to the right until it meets the horizontal V axis at a positive value of V (no numerical axis labels are printed).
- (A)
-5.7
- (B)
-3.8
- (C)
-1.2
- (D)
-0.4