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Physics
Problem
The magnitude of the force on a straight current-carrying wire placed in a uniform magnetic field becomes zero when the angle between the current direction and the magnetic field is a)
45
∘
45^{\circ}
4
5
∘
b)
0
∘
0^{\circ}
0
∘
c)
90
∘
90^{\circ}
9
0
∘
d)
60
∘
60^{\circ}
6
0
∘
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