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Which risk increases significantly when inductive charging coil distance increases?

A)Eddy current induction weakens dramatically
B)Dielectric breakdown within coil insulation
C)Radiative heat transfer grows rapidly
D)Increased capacitive coupling to nearby metal

💡 Explanation

Increased distance weakens the magnetic field reaching the receiver coil; therefore, the coil coupling coefficient degrades because fewer magnetic field lines intersect, rather than heat increase, which depends power loss in windings.

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