MCQ
In the circuit shown below, maximum zener diode current will be $.....mA$


- ✓$9$
- B$90$
- C$95$
- D$45$

Thus $\quad I _{2}= I - I _{ L }$
$=0.015-0.006=0.009 A =9\,mA$
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$(a)$ The size of the antenna should be comparable to signal wavelength which is unreal solution for a signal of longer wavelength.
$(b)$ Effective power radiated by a long wavelength baseband signal would be high.
$(c)$ We want to avoid mixing up signals transmitted by different transmitter simultaneously.
$(d)$ Low frequency signal can be sent to long distances by superimposing with a high frequency wave as well.
Therefore, the most suitable options will be
