Question: Suppose a negatively charged ring is placed directly above the positively charged ring in Figure 28.7. If both rings spin in the same direction, is

Suppose a negatively charged ring is placed directly above the positively charged ring in Figure 28.7. If both rings spin in the same direction, is the magnetic interaction between them attractive or repulsive?

Figure 28.7 The magnetic field of a charged spinning ring is identical

Figure 28.7 The magnetic field of a charged spinning ring is identical to that of a current loop. spin

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