21. A Zener diode ___________ A. Is a battery B. Acts like a battery in the breakdown region C. Has a barrier potential of 1 V D. Is forward biased Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
22. The rupture of covalent bonds will occur when the electric field is ___________. A. 100 V/cm B. 0.6 V/cm C. 1000 V/cm D. More than 105 V/cm Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
23. What is true about the breakdown voltage in a Zener diode? A. It decreases when load current increases B. It destroys the diode C. It equals current times the resistance D. It is approximately constant Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
24. A Zener diode is used as a ___________ voltage regulating device A. Shunt B. Series C. Series-shunt D. None of the above Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
25. A power supply which has voltage regulation of ___________ is unregulated power supply A. 0% B. 5% C. 10% D. 8% Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
26. Commercial power supplies have voltage regulation ___________ A. of 10% B. of 15% C. of 25% D. within 1% Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
27. If the doping level is increased, the breakdown voltage of the Zener ___________ A. Remains the same B. Is increased C. Is decreased D. None of the above Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
28. Another name for Zener diode is ___________ diode A. Breakdown B. Voltage C. Power D. Current Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
29. The current in a Zener diode is limited by ___________ A. External resistance B. Power dissipation C. Both (A) and (B) D. None of the above Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
30. The Zener current will be minimum when ___________ A. Load current is maximum B. Load current is minimum C. Load current is zero D. None of the above Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
