Category Archive: energy loss

Oct 10

Motion in a vertical circle and conservation of energy

A stone  tied to a string of length l is whirled around a vertical circle with the other end of the string at the centre. At a certain instant of time the stone is at the lowest position and has a

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Permanent link to this article: http://www.plustwophysics.com/motion-in-a-vertical-circle-and-conservation-of-energy/

Sep 15

Why direct currents aren’t used in Home circuits?

How can an alternating current change its direction while moving in a wire or any conductor? Why direct currents aren’t used in Home circuits? RAHUL ASKED Answer: Alternating current is produced by rotating a coil in a strong magnetic field (or ...

Permanent link to this article: http://www.plustwophysics.com/why-direct-currents-aren%e2%80%99t-used-in-home-circuits/

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