Magnetic fields (A-level only)

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Question 61
Medium

To achieve magnetic levitation (where the magnetic force exactly balances the weight of the rod), what current must flow through the rod?

0.20 A0.20\text{ A}0.20 A

3.20 A3.20\text{ A}3.20 A

5.00 A5.00\text{ A}5.00 A

5.71 A5.71\text{ A}5.71 A

Magnetic fields (A-level only) Questions

  1. A Level
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