A resistor is such a device which finds use in almost everything related to electronics. A resistor is used in lamps, fans, toaster, microwave, etc. Technically, a resistor is a two-terminal component that is used to obtain electrical resistance in circuits. In electronic circuits, resistors are used to reduce current flow, adjust signal levels, to divide voltages and more. Resistors are usually made of metals or other components that have a very high resistivity as compared to common connecting metals like copper and aluminium. These metals are then coated with an insulating material.
How to use
To use a resistor, just select a resistor of appropriate ratings and put it in the circuit. Resistors don’t have any polarity of terminals so they can be connected either way in the circuit and made to work. The connections once made can be soldered to keep them intact.
Common Applications
1. Used to restrict the flow of current in almost every circuit.
Some example projects that students can try out in the ATL Lab
1. Connect resistors in different arrangements with LED and battery and notice the difference in its intensity.
Safety Measures to follow
1. Don’t touch the open resistor leads while it’s in use.
2. Don’t twist or break the resistors.
Important Links
1. How to read resistor values (https://www.youtube.com/watch?v=GLD7AgAYqwA)
YouTube Video
