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A coil of 600 turns is wound uniformly on a ring of non-magnetic material. The ring has a uniform cross-sectional area of 200mm2 and a mean circumference of 500mm. If the current in the coil is 4A, determine
(a) The magnetic field strength,
(b) The flux density, and
(c) The total magnetic flux in the ring.
Feeling centrifugal force Tie a weight to a string about a metre in length and then whirl the weight around at arm's length. View the outward pull on the string. This is centri
Coupling factor: If all the flux of a primary coil links with all the turns of a secondary then 100% coupling exists. Sometimes it is more convenient to use a coupling factor
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What is the effect of torque and equilibrium on taps,doors,handlebars and bicycles?
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