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Kapil Prajapat posted an Question
February 08, 2022 • 09:30 am 30 points
  • IIT JAM
  • Physics (PH)

Q.13 a zener regulator has an input voltage in the range 15v-20v and a load current in the range of 5 ma-20 ma. if the zener voltage is 6.8v, the value of the s

Q.13 A Zener regulator has an input voltage in the range 15V-20V and a load current in the range of 5 mA-20 mA. If the Zener voltage is 6.8V, the value of the series resistor should be ww- o 15-20 V 6.8V (A) 390 Q2 (B) 420 Q (C)440 2 (D) 460 Q

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  • Animesh anand

    some data is missing in the problem

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    this is iit jam 2015 question

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    yes I know

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    but no option is match

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    I also search this in the Google where I found that it is written that some data is missing in problem so no option is match

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    so you should accept this

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    for your satisfaction I show you

  • Animesh anand

    yes you are right no option is matched because answer should be in between two value which I obtained here

    cropped6642163429921904185.jpg
  • Animesh anand best-answer

    kindly find your answer attached below

    cropped2301598886200001834.jpg
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    last calculation is something wrong

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    in last calculation Imin should come as 1640ohm

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