JEE Main202120 Jul 2021Evening ShiftPhysicsSemiconductorsActual
A zener diode having zener voltage 8 V and power dissipation rating of 0 . 5 W is connected across a potential divider arranged with maximum potential drop across zener diode is as shown in the diagram. The value of protective resistance R p is _____ Ω .
Correct answer
0
Step-by-step solution
P = V i 0 . 5 = 8 i i = 1 16   A E = 20 = 8 + i R P R P = 12 × 16 = 192   Ω