Doubts
Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents
Sign in to save progress →
Doubts
Sign in

Electronic Devices question

2025 · 2 Apr · Shift 1 · Q68
Guest · try one question or challengeGuest · try one question or challenge
  1. PYQ Library
  2. /JEE Main
  3. /Physics
  4. /Electronic Devices
  5. /2025 · 2 Apr · Shift 1 · Q68

Electronic Devices question

2025 · 2 Apr · Shift 1 · Q68

JEE MainPhysicsElectronic DevicesMCQ+4 / −1
A zener diode with 5 V zener voltage is used to regulate an unregulated dc voltage input of 25 V . For a 400Ω400 \Omega400Ω resistor connected in series, the zener current is found to be 4 times load current. The load current (IL)\left(I_L\right)(IL​) and load resistance (RL)\left(R_L\right)(RL​) are :
  1. A
    IL=0.02 mA;RL=250Ω\mathrm{I}_{\mathrm{L}}=0.02 \mathrm{~mA} ; \mathrm{R}_{\mathrm{L}}=250 \OmegaIL​=0.02 mA;RL​=250Ω
  2. B
    IL=10 A;RL=0.5Ω\mathrm{I}_{\mathrm{L}}=10 \mathrm{~A} ; \mathrm{R}_{\mathrm{L}}=0.5 \OmegaIL​=10 A;RL​=0.5Ω
  3. C
    IL=10 mA;RL=500Ω\mathrm{I}_{\mathrm{L}}=10 \mathrm{~mA} ; \mathrm{R}_{\mathrm{L}}=500 \OmegaIL​=10 mA;RL​=500Ω
  4. D
    IL=20 mA;RL=250Ω\mathrm{I}_{\mathrm{L}}=20 \mathrm{~mA} ; \mathrm{R}_{\mathrm{L}}=250 \OmegaIL​=20 mA;RL​=250Ω
Next

More from Electronic Devices

  •  In the digital circuit shown in the figure, for the given inputs the P and Q values are :  Includes diagram2025 · MCQ
  •  Choose the correct logic circuit for the given truth table having inputs A and B.  Includes table2025 · MCQ
  • The truth table corresponding to the circuit given below is:  Includes diagram2025 · MCQ
  • The Boolean expression Y=ABˉC+AˉCˉ can be realised with which of the following gate configurations. A. One 3-input AND gate, 3 NOT gates and one 2-input OR gate, One 2-input AND gate, B. One 3 -input AND gate,…2025 · MCQ
  • Consider a n-type semiconductor in which ne​ and nh​ are number of electrons and holes, respectively. (A) Holes are minority carriers (B) The dopant is a pentavalent atom (C) ne​nh​eqni2​…2025 · MCQ
  • In the following circuit, the reading of the ammeter will be ( Take Zener breakdown voltage =4 V) Includes diagram2025 · MCQ
  • Consider the following logic circuit. The output is Y = 0 when : Includes diagram2025 · MCQ
  • The output voltage in the following circuit is (Consider ideal diode case) Includes diagram2025 · MCQ