Transition Capacitance Online Exam Quiz
Transition Capacitance GK Quiz. Question and Answers related to Transition Capacitance. MCQ (Multiple Choice Questions with answers about Transition Capacitance
A diode had a transition capacitance of 1pF and depletion width of 1 ?m. The capacitance changes to 10 pF when the depletion width changes. The final depletion width is __
Options
A : 10 ?m
B : 0.1 ?m
C : 1 ?m
D : 100 ?m
A diode is replaced with another diode of different material. The ratio of relative permittivity of new material to old is 0.5. The initial capacitance was 20pF, then final capacitance will be __
Options
A : 15pF
B : 20pF
C : 10pF
D : 2pF
As reverse bias voltage increases transition capacitance __
Options
A : Increases
B : Decreases
C : Doesn't depend upon voltage
D : Constant
At saturation, which of these is not true for a BJT?
Options
A : The collector current IC cannot increase further
B : The base current IB, cannot increase further
C : The collector-to-emitter voltage, VCE is due to the non-zero internal resistance of BJT
D : VCE(saturation) is the minimum voltage drop between C and E
Capacitance per unit area at no reverse bias is 2 pF/cm2. For a step graded diode of area 5cm2, what is net capacitance at 99 V reverse bias voltage?
Options
A : 2pF
B : 5pF
C : 0.1pF
D : 1pF
Consider 2 reverse biased diodes. If the ratio of applied reverse bias voltages is 0.5, find the ratio of transition capacitances of the 2 diodes.
Options
A : 2
B : 4
C : 1.31
D : 2.6
Consider the graph of IC vs VI shown below for a transistor. Find the correct relation for region 3 in the diagram.^
Options
A : IC = IC(sat) and VCE = VCE(sat)
B : IC = IC(sat) and VCE = VCC
C : IC = ?IB and VCE = VCE(sat)
D : IC = ?IB and VCE = VCC
Consider two diodes, A is step graded, B is linear graded. Find the ratio of the capacitance of A to B, when the applied voltage in reverse bias is 64V.
Options
A : 0.2
B : 2
C : 0.5
D : 5
For a diode the transition capacitance was 10pF. The depletion width changed from 1?m to 10 ?m. All other conditions remain unchanged. The new diode capacitance is __
Options
A : 5pF
B : 1.414pF
C : 1pF
D : 10pF
For a diode the transition capacitance was 15pF. The diode is replaced with another diode of same material with twice cross sectional area. Terminal voltage remains unchanged. The capacitance of new diode is __
Options
A : 15pF
B : 30pF
C : 60pF
D : 7.5pF
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