Define Zener voltage.

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.

With the help of lebelled circuit diagram, discuss the working of transistor as a common emitter amplifier.Find the phase relationship between input and output signals. Also define its voltage gain.

For a transistor amplifier, the voltage gain

In a series LCR circuit R = 200 Omega and the voltage and the frequency of the main supply is 220 V and 50 Hz respectively. On taking out the capacitance from the circuit the current lags behind the voltage by 30^@ . On taking out the inductor from the circuit the current leads the voltage by 30^@ . The power dissipated in the LCR circuit is

A sinusodial voltage E = 200 sin 314 t is applied to a resistor of 10 ohm resistance. Calculate r.m.s. value of the voltage

Why zener breakdown voltage decreases with increase in temperature?

What is breakdown voltage range of a zener diode?