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The 6 V zener diode shown in the figure has zero zener resistance and a knee current of 5 mA. The minimum value of R, so that the voltage across it does not fall below 6 V, is
  • a)
    80 Ω
  • b)
    50 Ω
  • c)
    1.2 kΩ
  • d)
    Zero
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
The 6 V zener diode shown in the figure has zero zener resistance and ...
The minimum current flowing through the Zener diode is known as the Zener knee current.
Given, VZ = 6V 
IZ = 5 mA = 0.005 A
Applying KVL at node A:


R = 80 Ω 
Free Test
Community Answer
The 6 V zener diode shown in the figure has zero zener resistance and ...
The minimum current flowing through the Zener diode is known as the Zener knee current.
Given, VZ = 6V 
IZ = 5 mA = 0.005 A
Applying KVL at node A:


R = 80 Ω 
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The 6 V zener diode shown in the figure has zero zener resistance and a knee current of 5 mA. The minimum value of R, so that the voltage across it does not fall below 6 V, isa)80 Ωb)50 Ωc)1.2 kΩd)ZeroCorrect answer is option 'A'. Can you explain this answer?
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