Description A 2 amp current is flowing through two different small circular copper coils having radii ratio 1 : 2. The ratio of their respective … Read More
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Description If the ratio of diameters, lengths and Young’s modulus of steel and copper wires shown in the figure are p, q and s respectively, … Read More
Description One end of a horizontal thick copper wire of length 2L and radius 2R is welded to an end of another horizontal thin copper … Read More