A current passes through a resistor. Let \( K_{1} \) and \( K_{2} \) represent the average kinet...

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A current passes through a resistor. Let \( K_{1} \) and \( K_{2} \) represent the average kinetic energy of the conduction electrons and the metal ions respectively.
(a) \( K_{1}<K_{2} \)
(b) \( K_{1}=K_{2} \)
(c) \( K_{1}>K_{2} \)
(d) Any of these three may occur.
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