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Mathematics
Mathematics
Problem
A
40
cm
40\,\text{cm}
40
cm
long conductor lies wholly inside a uniform magnetic field of strength
0.75
T
0.75\,\text{T}
0.75
T
. The conductor experiences a force of
0.90
N
0.90\,\text{N}
0.90
N
when it carries a current at
30
∘
30^{\circ}
3
0
∘
to the field direction. Determine the current in the conductor.
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