Write about construction of circuit and uses of the same.
Answers
An electronic circuit is composed of individual electronic components, such as resistors, transistors, capacitors, inductors and diodes, connected by conductive wires or traces through which electric current can flow. To be referred to as electronic, rather than electrical, generally at least one active component must be present. The combination of components and wires allows various simple and complex operations to be performed: signals can be amplified, computations can be performed, and data can be moved from one place to another.[1]
Circuits can be constructed of discrete components connected by individual pieces of wire, but today it is much more common to create interconnections by photolithographic techniques on a laminated substrate (a printed circuit board or PCB) and solder the components to these interconnections to create a finished circuit. In an integrated circuit or IC, the components and interconnections are formed on the same substrate, typically a semiconductor such as silicon or (less commonly) gallium arsenide.[2]
An electronic circuit can usually be categorized as an analog circuit, a digital circuit, or a mixed-signal circuit (a combination of analog circuits and digital circuits).
Breadboards, perfboards, and stripboards are common for testing new designs. They allow the designer to make quick changes to the circuit during development.
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Answer:
Explanation:
This simple circuit consists of just three components: a 9 V battery, a light-emitting diode (LED), and a resistor.
You can build this circuit on a solderless breadboard. You’ll need the following parts:
1.Small solderless breadboard
2.470 Ω, 1/4 W resistor
Red LED, 5 mm
3.9 V battery snap connector
4.9 V battery
5.Short length of jumper wire (1″ or less)
Steps:
Connect the battery snap connector.
Insert the red lead in the top bus strip and the black lead in the bottom bus strip. Any hole will do, but it makes sense to connect the battery at the very end of the breadboard.
Connect the resistor.
Insert one end of the resistor into any hole in the bottom bus strip. Then, pick a row in the nearby terminal strip and insert the other end into a hole in that terminal strip.
Connect the LED.
Notice that the leads of the LED aren’t the same length; one lead is shorter than the other. Insert the short lead into a hole in the top bus strip, and then insert the longer lead into a hole in a nearby terminal strip.
Insert the LED into the same row as the resistor. Both the LED and the resistor are in row 26.
Use the short jumper wire to connect the terminal strips into which you inserted the LED and the resistor.
The jumper wire will hop over the gap that runs down the middle of the breadboard.
Connect the battery to the snap connector.
The LED will light up. If it doesn’t, double-check your connections to make sure the circuit is assembled correctly. If it still doesn’t light up, try reversing the leads of the LED (you may have inserted it backwards). If that doesn’t work, try a different battery.
Do not connect the LED directly to the battery without a resistor. If you do, the LED will flash brightly, and then it will be dead forever......