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An infinitely long wire carries a current of three amps. The magnetic field outside the wire:
a) Points radially away from the wire
b) Points radially inward
c) Circles the wire
d) is zero.
Ans:
An infinitely long wire carries current of 3 amps. Outside the wire circles the magnetic field circles the wire.
(i) The size examines cannot be operated to derive relations other than product of power functions, for example, s = ut + 1/2 at 2 or y = y 0 cosωt and so on, cannot be derived
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