What is Zener diode? Draw its voltage vs current characteristics in the reverse bias and indicate the breakwon voltage on the characteristics. Mention one important use of this diode.

What is Zener dioide? Draw its voltage vs currrent characteristics in the reverse bias and indicaste the breakdown voltage on the characteristics. Mention one important use of this diode.

Draw the voltage-current charateristics of a p-n junction and compare it with the characteristics of a resistor.

What is a photodiode ? Draw the I-V characteristic curve of a photodiode. Mention one use of photodiode.

What kind of diode is used as a voltage regulator? .draw the v-i characteristic curve for this diode.

What is a photodiode? Draw theI-V characteristic curve of a photodiode. Mention one use of photodiode.

Draw a circuit diagram to illustrate the action of a Zener diode as a voltage regulator. Draw the current versus voltage characteristics curve of a Zener diode. Indicate the position of Zener voltage in the curve.

Draw a characteristics curve of zener diode showing the variation of volatage with respect to the currrent and indicate the position of "zener voltage" in the graph.

The maximum output voltage of an unregulted voltage source is 10V. A Zener diode of rating 1 W is connected in reverse bias with this voltage source through a resistance R. The Zener diode will be burnt if R is less than 24 Omega . Find the maximum value of Zener voltage (in volt ) of the diode.

(i) What is Zener diode? (ii) Explain with circuit diagram how a Zener diode regulates voltage across a load resistance.

Draw the characteristic curve of a Zener diode. From this curve, explain the speciality of a Zener diode in respect to a general semiconductor diode.