Physics For Competative Exams

Lightning is a natural electrical discharge that occurs during thunderstorms. It is a sudden, powerful burst of …

What is motion Motion refers to the act or process of changing position or location. In physics, motion is defined as…

Satellites: man-made orbiting objects . What is satellite A satellite is a man-made object that is launched into spac…

What is Antenna An antenna is a device that is designed to transmit or receive electromagnetic waves. Antennas are co…

Antenna theory is the branch of electrical engineering that deals with the study of antennas, which are devices that tr…

Impedance is a measure of the opposition to the flow of electric current in a circuit. It is a complex quantity that …

Resonance is a phenomenon that occurs in a system when its natural frequency of vibration matches the frequency of an…