Question: 1. Why not define B to be in the direction of F, as we do for E? 2. If a current I in a given

1. Why not define B to be in the direction of F, as we do for E?

2. If a current I in a given wire and a magnetic field B are known, the force F on the current is uniquely determined. Show that knowing F and I does not provide complete knowledge of B.

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