A $9\,V$ stabilised voltage supply is required to run a car stereo system from the car's $12\,V$ battery. A zener diode with $V_z = 9\,V$ and $P_{max} = 0.27\, W$ is to be used as the voltage regulator. The load resistance is $450\,\Omega $. The value of series resistor is….$\Omega $

A Zener diode of breakdown voltage $10 \mathrm{~V}$ is used as a voltage regulator as shown in the figure. The current through the Zener diode is

Consider the following statements $A$ and $B$ and identify the correct choice of the given answers

The potential barrier of a $ PN$junction lies between$ 0.1$ to $0.3\, V$ approximately

A zener diode is always connected in reverse bias

What is the value of output voltage $V_0$ is ……….. $V$ in the circuit shown in the figure?

In a zener diode, break down occurs in reverse bias due to