A capacitor stores energy when it is connected to its charging circuit and dissipates this stored energy when it is disconnected from the... View Article
Why do radio waves from radio stations not interfere with each other? Commercial radio stations in any given geographic broadcast market are... View Article
The reading of a spring balance when an object is kept on it and placed at the North pole is 100 N. What will the reading be if the same weight... View Article
Bypass diodes are also known as free-wheeling diodes are connected in parallel with individual solar cells to provide a current path around them... View Article
The amount of energy released in forming a nucleus is known as the binding energy. The average energy required to remove a nucleon from a nucleus... View Article
Vernier Gauge or a Vernier Scale is a measurement instrument that is used to measure the inner and outer breadth of rods and thickness of objects... View Article
The Brownian motion refers to the random movement displayed by small particles that are suspended in fluids. It is commonly referred to as... View Article
Hysteresis is the dependence of the state of a system on its history. We encounter the term hysteresis in physics, chemistry, engineering,... View Article
Calculate the binding energy per nucleon of 4He. Solution: The following equation gives the binding energy for a nucleus: BE = {[Zm(1H) +... View Article
Determine the electric field due to a point charge of 20 µC at a distance of 1 m away from it. Solution: The electric field at an arbitrary... View Article
In the 1920s, a young physicist named Louis de Broglie made a suggestion that since light has momentum, wavelength and energy, and the matter has... View Article
The idea of an ideal heat engine was first developed by Sadi Carnot in 1824. He imagined a heat engine which was free of friction and the working... View Article
The inside of the conductor does not contain any charge. If charges were present inside a conductor then such charges would produce an electric... View Article
How to size a capacitor for an electric motor? A capacitor provides the initial push needed by the motor to rotate its metal shafts. Capacitors... View Article
Calculate the binding energy of the oxygen isotope 168O. Consider the mass of the isotope to be 16.0amu. Solution: The isotope contains 8... View Article
Flux is a set of imaginary lines through which a physical quantity travels. In physics, there are two types of important flux and they are known... View Article
