MCQ
If a full wave rectifier circuit is operating from $50\, Hz$ mains, the fundamental frequency in the ripple will be........$Hz$
- A$50$
- B$70.7 $
- ✓$100$
- D$25$
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$(A)$ A zener diode is connected in reverse bias, when used as a voltage regulator.
$(B)$ The potential barrier of $\mathrm{p}-\mathrm{n}$ junction lies between $0.1\, \mathrm{~V}$ to $0.3 \,\mathrm{~V}$.