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8 June, 13:46

If the strength of the magnetic field at A is 48 units and the strength of the magnetic field at B is 3 units, what is the distance to B? (Drawing is not to scale!) 400 m 25 m 80 m 20 m

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  1. 8 June, 13:54
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    This is the formula to calculate the distance:

    Force (F) = charge (q) * velocity (v) * field strength (B)

    In the end, you get 20 units, which should be the correct answer.
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