Q1. Differentiate with the aid of simple sketches between the following types of Electronic circuits.
i) Rectifier circuit
ii) Amplifier circuit
iii) Oscillator circuit
Q2.a) Sketch a circuit for a basic d.c. voltage stabilisation circuit using a Zener diode and a series resistor.
b) Sketch & describe the reverse current characteristic for a typical Zener diode.
c) List the factors which determine the value of the series resistor in the circuit.
d) List the factors that determine the power rating of the chosen Zener diode.
Q3. Discuss magnetic leakage in a Transformer, and indicate how its value may be kept down, show, by means of a vector diagram, how the voltage regulation of a transformer is influenced by its magnetic leakage.
Username or email address *Required
Password *Required
Note: Entering wrong username in the login form will ban your IP address immediately. Entering wrong password multiple times will also ban your IP address temporarily.
Log in
Lost your password? Remember me
No account yet?
