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A wire is sliding as shown in figure. The angle between the acceleration and the velocity of the wire is

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30∘

40∘

120∘

90∘

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detailed solution

Correct option is C

Due to induced emf in rod, current will flow in upward direction of rod. Due to this, magnetic force acts perpendicular to rod as shown in figure.∴θ=90∘+30∘=120∘

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