Physics · Unit 1 · Electrical circuits · Current, potential difference and energy flow
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A charged capacitor stores energy through the separation of positive and negative charges on its plates. What best explains why this charge separation produces an electrical potential difference?
What is the key reason why separating positive and negative charges produces an electrical potential difference?
A conducting sphere initially has equal numbers of positive and negative charges distributed uniformly. Electrons are then removed from one hemisphere and added to the other hemisphere. What is the primary reason an electrical potential difference is produced between the two hemispheres?