railway RRB Technician Grade 1 Mock Test 2024 Analog Electronics Diodes and Its Applications Zener Diodes
Calculate the maximum value of Rs in the given circuit to give 12 V regulated output from an unregulated supply of 28 V for a maximum load current of 150 mA (Zener voltage is 12 V and knee current of Zener diode is 10 mA)
1
110 Ω
2
106.67 Ω
3
120 Ω
4
100 Ω