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Step 1 of 2 3.025P Write the formula for the Depletion capacitance c, for a particular junction. c, = (1) Here, 'm' is constant called the grading coefficient represents the value of c, at zero reverse bias represents reverse bias V. represents open circuit voltage. Substitute 0.4pF for , 1V for , 0.75V for V. and 1/3 for m in equation (1). 0.4 c, = 1V pF = 0.301578976 pF = 0.3 pF Thus, the junction capacitance at 1V reverse bias voltage is 0.3 pF Step 2 of 2 The reverse bias voltage changed to Substitute 0.4 pF for C , 10 V for 0.75 V for V. and 1/3 for m in equation (1). c, = 0.4 pF = 164668649 pF = 0.165 pF Thus, the value of capacitance c, for of 10 V is 0.165 pF