Fabricate a uniform wire out of copper
Suppose you wish to fabricate a uniform wire out of 2.30 g of copper. If the wire is to have a resistance of R = 0.500 Ω and if all of the copper is to be used, what must be:
(a) the length of this wire?(b) the diameter of this wire?
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For a velocity field given by V=+0.1xi-0.1yj where x and y are in meters and V is in m/s. Find the equation of the pathline of the particle located at the point x=2, y=8 at t=0.
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Two long wires are seperated by a distance of 33 cm and carry current in the same direction. Wire A carries a current of 1.2 A, wire B carries a current of 0.75 A. Where is the magnetic field is zero ?
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