Least Count plays an important role in measurement devices like Vernier Caliper. This blog explains the procedure of calculating the least count of the metric vernier caliper.
An inductor is a passive electronic component that stores energy in the form of a magnetic field. In its most basic form, an inductor is nothing more than a coil of wire wound around a central core. Check out this blog to make your own.
This blog tells us how we can generate Variable Duty Cycle and Frequency of a PWM signal using potentiometer and 555 Timer IC.