An AM wave expression consists of carrier and two sidebands. The carrier component of the modulated wave has the same amplitude as the unmodulated carrier. The AM modulated wave contains extra power in the two sideband components. The amplitude of the sidebands depends on the modulation index ‘ma‘. Therefore the total power in the modulated
Power Relations (Distributions) in an AM Wave Read More »
The foundation of all experimental science and technology is measurement. The result obtained from any measurement will contain some uncertainty. Such an uncertainty is termed error. Any calculation made using the measured values will also have an error. It is not possible to make exact measurements in an experiment. In measurements, two different terms, accuracy
Theory of Errors in Physics Read More »
The concept of length in physics is related to the concept of distance in everyday life. Length is defined as the distance between any two points in space. The SI unit of length is metre. The objects of our interest vary widely in sizes. For example, large objects like the galaxy, stars, Sun, Earth, Moon
Measurement of length Read More »