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A Zener diode of breakdown voltage 6 V is used as a voltage…
Question
A Zener diode of breakdown voltage 6 V is used as a voltage regulator. An unregulated 12 V supply is connected through a 300 ohm series resistor to the diode, and a 600 ohm load resistor is connected in parallel with the diode. Assuming the diode holds 6 V across the load, find the current (in mA) flowing through the Zener diode.
✓ Verified answer: 10checked by our engine — not a guess
Step-by-step solution
Series current from supply: I = (12 - 6)/300 = 0.02 A = 20 mA.
Load current: I_L = 6/600 = 0.01 A = 10 mA.
By KCL, Zener current = I - I_L = 20 - 10 = 10 mA.
Final answer10.0
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