In the given circuit, the voltage across the load is maintained at $12 \mathrm{~V}$. The current in the…
In the given circuit, the voltage across the load is maintained at $12 \mathrm{~V}$. The current in the zener diode varies from $0-50 \mathrm{~mA}$. What is the maximum wattage of the diode?
$12 \mathrm{~W}$
$6 \mathrm{~W}$
$0.6 \mathrm{~W}$
$1.2 \mathrm{~W}$
Solution
In the circuit, the zener diode is used as
power regular therefore,
$P=V I$
$=12 \times 0.05=0.6 \mathrm{~W}$
