What is a diode?
A diode is an electronic component that allows current to flow in only one direction. It has two
terminals, an anode (positive) and a cathode (negative).
What are the two bias operations of a diode?
The two bias operations of a diode are forward bias and reverse bias.
Forward bias occurs when the positive terminal of the voltage source is connected to the anode
and the negative terminal is connected to the cathode.
Reverse bias occurs when the positive terminal of the voltage source is connected to the
cathode and the negative terminal is connected to the anode.
How do you connect the voltmeter when measuring the voltage drop across the diode?
To measure the voltage drop across the diode, connect the positive (red) lead of the voltmeter to
the anode of the diode and the negative (black) lead to the cathode.
What are the things to consider when doing temporary connections on a breadboard?
When making temporary connections on a breadboard, it's important to:
Ensure the components are inserted in the correct holes according to the circuit diagram.
Avoid bending the component leads too much.
Check for loose connections and re-insert components if necessary.
Use solid connecting wires to ensure good connections.
What is/are the effects on the voltage drop across the diode when increasing the supply input
voltage?
As the supply input voltage increases, the voltage drop across the diode (forward bias) also
increases. This causes more current to flow through the diode.
State some problems encountered when doing the laboratory and how did you manage to fix it?
(If Any)
Some common problems encountered in the laboratory include:
Incorrect connections: Double-checking the connections and referring to the circuit diagram can
help fix this.
Loose connections: Ensuring all connections are secure can help prevent this issue.
Faulty components: Replacing faulty components with new ones can resolve this problem.
Improper measurements: Using the correct settings on the measuring instruments and ensuring
they are properly calibrated can help in this situation.
The Astable Multivibrator Circuit with two flashing LEDs effectively illustrated the fundamental
concept of an electronic oscillator by demonstrating the alternating flashing pattern of the LEDs.
This behavior was controlled by the specific values of resistors and capacitors used in the
circuit, which determined the frequency of the flashing. The circuit exhibited consistent and
reliable operation, highlighting its practical application in various timing circuits and LED flashing
applications.