For the circuit shown below, the current through the Zener diode is :
- $5\, mA$
- Zero
- $14\, mA$
- $9 \,mA$
The Correct Option is D
Solution and Explanation
$\therefore$ Voltage drop across diode = $80 V > 50 V$.
The diode undergo breakdown.
Current is $R_1 = \frac{70}{5000} = 14 \,mA$
Current is $R_2 = \frac{50}{10000} = 5 \,mA$
$\therefore$ Current through diode = $9\,mA$
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Concepts Used:
Semiconductors
Semiconductors are a crystalline solid materials, whose electrical conductivity lies between a conductor and an insulator. Semiconductors are mainly used in the manufacturing of electronic devices like capacitors, transistors, diodes, Integrated circuits, etc.
Properties of Semiconductor:
- Semiconductor acts like an insulator at Zero Kelvin. On increasing the temperature, it works as a conductor.
- Due to their exceptional electrical properties, semiconductors can be modified by doping to make semiconductor devices suitable for energy conversion, switches, and amplifiers.
- Lesser power losses.
Uses of Semiconductor:
- Semiconductors are widely used in manufacturing electronics devices like transistors, diodes, sensors, integrated circuits.
- Semiconductors are widely used in all electronic devices, like mobile phones, digital cameras, communication devices, trains, ATMs, etc.