Draw a labelled circuit diagram of a full wave rectifier using junction diodes.

Draw the circuit diagram of a half wave rectifier using a junction diode.

Draw a labelled diagram of a neuron.

Draw a labelled diagram of sperm.

Draw a labelled diagram of sperm.

Draw the current versus voltage characteristics curve of a Zener diode. Indicate the position of Zener voltage. Draw a labelled circuit diagram of a d.c. voltage regulator using a Zener diode.