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JEE Main202116 Mar 2021Morning ShiftPhysicsSemiconductorsActual

The value of power dissipated across the zener diode V z = 15 V connected in the circuit as shown in the figure is x × 10 - 1 W . The value of x to the nearest integer is _______.

Correct answer

0

Step-by-step solution

Voltage across R S = 22 - 15 = 7   V Current through R S = I = 7 35 = 1 5   A Current through 90 Ω = I 2 = 15 90 = 1 6   A Current through zener = 1 5 - 1 6 = 1 30   A Power through zener diode P = V I P = 15 × 1 30 = 0 . 5 watt P = 5 × 10 - 1 watt

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