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
Category Archive: energy loss
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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 ...
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