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Two parallel wires of length 9 m each are separated by a distance 0.15 m. If they carry equal current in the same direction and exerts a total force of on each other, then the value of current must be
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Correct option is D
F= 10−7 × 2i2a × l⇒30 × 10−7 =10−7 ×2i2 0.15 × 9⇒ i=0.5 ASimilar Questions
Two thin long parallel wires separated by a distance b carrying a current i ampere each. The magnitude of the force per unit length exerted by one wire on the other is
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