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You walk across a carpet on a dry day and then touch a metal doorknob, feeling a small spark. Just before you touch it, your whole body, including your hands and the tip of your nose, carries some excess charge, even though no charge actually traveled there from your shoes. What is this redistribution of charge within your body called?
APolarization
BConduction
CInduction
DDischarging
Answer & Solution
Correct answer: A. Polarization
1. Excess electrons on the shoes push away nearby electrons in the body without any electrons actually traveling from the shoes to the hands.
2. This redistribution, where charge separates within an object without a net charge being added or removed, is called polarization.
3. Conduction is direct transfer of charge between touching conductors, which is not what happens inside the single body here.
4. Induction describes creating an unbalanced charge on a separate nearby object, not a redistribution inside one object, so it does not fit either.
_Source: OpenStax Physics (CC BY 4.0), Ch 18 "Static Electricity", section Transfer and Separation of Charge_
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