Amazing Problems on OPAmp - Integrator || GATE 2025 || PrepFusion
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@HimanshuAgarwal_ 17 күн бұрын
Note : In problem 3, the graph of Vo starts from 10v, not from Zero. Analysis and calculation remains the same. In Problem 2, Time constant will be RC/2 after saturation.
@suvrojitmukherjee3662 15 күн бұрын
Bhaiya can you please explain why after saturation the time constant would be RC/2
@HimanshuAgarwal_ 15 күн бұрын
@@suvrojitmukherjee3662 Treat it as a simple RC ckt, You will understand
@RameshKnowledgeIndex 8 сағат бұрын
So the final answer of prob 2 will be 2.094 right?
@HarshvardhanSingh-kt4sn 17 күн бұрын
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@amanruke3961 17 күн бұрын
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@phantom2001-q5l 16 күн бұрын
Bhaiya could you please explain why the time constant of the circuit is not 2RC after saturation in 2nd problem
@avinashparashar2079 15 күн бұрын
Actually it will be rc/2 not 2rc Or rc once the saturation happens
@bristocj2735 17 күн бұрын
30:00 I think the capacitor C's charging nor discharging doesn't necessarily effect the Vo thus its charging is not what matters .The charging of 2C capacitor on the other hand is what influence the Vo so its charging path R is taken for obtaining Time constant??
@bristocj2735 17 күн бұрын
I believe its the R from the input side correct me if I'm wrong
@HimanshuAgarwal_ 16 күн бұрын
No, R is the feedback one. Rest your reasoning looks correct.
@bristocj2735 15 күн бұрын
@@HimanshuAgarwal_ Thanks
@HarshvardhanSingh-kt4sn 17 күн бұрын
First to comment!
@AmitKumar-tv8dp 17 күн бұрын
In problem 2 for Vx after saturation......i guess Time constant should be RC/2
@priyansukarmakar9787 17 күн бұрын
it be rc/2 sir
@AmitKumar-tv8dp 17 күн бұрын
@@PrepFusion_GATE ok..i get it.... It will be a (parallel combination of both the resisters)×C=(RC) /2
@priyansukarmakar9787 17 күн бұрын
q/c=i2r q0/c=10 25=(i1+2i2)r =(i2'rc+2i2)r 25/r-2i2=rci2' i2r=(25-5e^-2t/rc)/2 vx=i2r-10 =(1-e^-2t/rc)*2.5 at t=0.9 s vx=2.08
@jalluriramgopal8739 16 күн бұрын
@@PrepFusion_GATE it is RC/2 right??
@PrepFusion_GATE 16 күн бұрын
Hi, Yes, after saturation it would be RC/2 only. Before saturation it would be RC
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