Author: GuruKPO

As their name suggests the main job of a “Power Amplifier” (also known as a large signal amplifier), is to deliver power to the load, and as we know from above, is the product of the voltage and current applied to the load with the output signal power being greater than the input signal power. In other words, a power amplifier amplifies the power of the input signal which is why these types of amplifier circuits are used in audio amplifier output stages to drive loudspeakers.

In third order pulley system , system of pulley is fixed to the top support over which a rope passes , whose one end is attached to the rigid base and the other end to the third pulley, like wise system of pulley is attached. The weight is hold by the rigid base.