Based on the measurements on table 1.1 and 1.2, what is the condition of the diode?
Analysis of Diode
It is a semiconductor device in electronics applications where only a one-way current is required. It is like a one-way switch that allows current to flow in one direction only. A diode has two terminals, a cathode, and an anode. The cathode is the negative terminal that carries electrons, while the anode is the positive terminal that carries holes. Although no element has holes, it just means that there is a free space for electrons. Diodes are used to convert AC to DC. As we know, AC shifts between positive and negative cycles and DC stays positive constantly. As the diodes allow current only in one direction, they filter out the AC signal’s negative cycle and only keep the positive one.
Working and Construction
In civil engineering, construction means the application of principles of science and mathematics for building bridges, dams, buildings, roads, highways, tunnels, airports, structures, etc. Different branches of science, like physics and chemistry, are extensively applied to design and analysis in construction. Material properties, the science of atmospheric conditions (like solutions, mixtures, etc.), the impact of environmental factors like, corrosion and acidity are some of the primary knowledge of chemistry which are used by civil engineers to carry out construction. Estimation of forces, application of laws of mechanics, fluids mechanics, soil mechanics, etc. are some of the fundamental concepts of physics, which are well applied in construction works. Building construction and structural engineering are two of the most primary areas in civil engineering that parallelly applies principles of both chemistry and physics to carry on construction works.
Property of Diode
An electronic component that facilitates the directional flow of current is known as a diode. According to the direction of the flow of current, the resistance of a diode changes from zero to Infinity.
![Table 1.1
Multimeter's probe connection to Diode terminal
Reading Result
Red to Anode & Black to Cathode
0.5 V
Red to Cathode & Black to Anode
OL
2. If the red probe is connected to the anode terminal of the diode, this means diode is forward-
biased. If the displayed voltage value is in between 0.6 to 0.7 (since it is silicon diode) then the
diode is healthy and perfect.
3. If the red probe is connected to the cathode and the black to anode, this is the reverse biased
condition of the diode where no current flows through it. Hence the meter should read OL (which is
equivalent to open circuit) if the diode is healthy.
B. Ohmmeter Mode Testing Procedure
1. Identify the terminals anode and cathode of the diode.
2. Keep the multimeter in resistance or ohmmeter mode by rotating the central knob or selector to the
place where ohm symbol or resistor values are indicated.
3. Keep the selector in low resistance (may be 200 ohm) mode for forward-bias and keep it in high
resistance mode (2M ohm) for the reverse bias testing procedure.
Using Multisim, select QW
* Simulated Agilent Multimeter-XMM2
* Agilent neutimene
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Table 1.2
Multimeter's probe connection to Diode terminal
Reading Result
Red (+) to Anode &
Black (-) to Cathode
535.45 Q
Red (+) to Cathode &
53.09 kO
Black (-) to Anode](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fda2153e4-6633-487a-90c8-3f65f587738a%2F3312061a-ca3c-4d46-9cab-a9c3ed93bbb7%2Fucndljh_processed.jpeg&w=3840&q=75)
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