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Electromagnetism Rules Everyday Forces
- Electromagnetism dominates everyday interactions because charged electrons in atoms cause repulsion and attraction at human scales.
- This force explains why solid objects resist passing through each other despite no literal contact.
Charge Aggregates And Cancels
- Electric charge is an intrinsic property of particles like electrons and protons that aggregates when combined.
- Net neutrality arises when positive and negative charges cancel, producing neutral macroscopic objects.
Like Repel, Opposites Attract
- Like charges repel and opposite charges attract; positive/negative labels are arbitrary.
- The two-type nature of charge makes electricity behave differently from always-attractive gravity.