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Synchronous Condensers: A synchronous motor takes a leading current when over-excited and thus behaves as a capacitor. An over-excited synchronous motor running on no load is called as synchronous condenser. When such a machine is linked in parallel with the supply, it takes a leading current which partly neutralises the lagging reactive component of the load. Therefore the power factor is improved.
Q. What are electromagnetic waves? As-per to Maxwell a speed up charge is a source of electromagnetic radiation. In an electromagnetic wave electric as well as magnetic field
Explain why a narrow slit is used in case of Bi-prism experiment where as an extended source is used in Newton's rings experiment?
A simple wheel and axle Remove the cover from a pencil sharpener and bind a string tightly around the end of the shaft. Bind a weight of various kilograms to the end of the str
Artificial satellites 1. Satellites help to develop reliable communication links between different countries separated by large distances on the globe. The communications inclu
A zinc plate is attached to the knob of a negatively charged electroscope. What will occur to the leaves of the electroscope when ultraviolet light is shown on the zinc plate
Spinning Charges and an Inhomogeneous Magnetic Field 2 A spinning charged object passes by an array of 3 magnets every generating an inhomogeneous magnetic field. This animati
Hiker stands at the bottom of steep hill. The hiker may follow a straight line path to the top of the hill, a distance of 300 feet, or she may follow a zig-zag path to the top of
how to reduce friction?
A longitudinal wave with a frequency of 34 Hz takes 1.0 s to travel the length of a 2.5 m Slinky (see the figure). Determine the wavelength of the wave. λ = ( )m
What is electrostatic shielding?
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