Question

stion 1 A coil has 273 loops of wire and a radius of 3.1 cm. How much current is needed to produce a magnetic field of 1.6 T
Jestion 3 A bar magnet has a North pole at the left end and a South pole at the right end. If the magnet is broken in half, s
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Answer #1

o magnetic field at centre = loin 2R B= 4TTX10-7x473x I = 1.58103 2X6.031 Is 0.289A optim-I i8 conect.

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