Discussion :: Network Analysis and Synthesis
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In figure, capacitor is used to develop pulses of short duration and large duty cycle across R2 when switch is closed. Which of the following combinations is best suited?
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A.
R1 and R2 large but C small
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B.
R1 and R2 small but C large
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C.
R1 and C large and R2 small
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D.
R2 and C large but R1 small
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Answer : Option C
Explanation :
Large values of R1 and C mean large time of charging C and hence large duty cycle. Small value of R2 ensures that duration of pulses is small.
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