Engineer Electricity
Engineer Electricity (전기기사, South Korea)
ElectromagneticsEnglish
Exam overviewPractice session
Two point charges of +2.0 μC each are placed 20 cm apart in free space (진공). What is the magnitude of the Coulomb force (쿨롱힘) between them? Use 1/(4πε0) = 9.0 × 10^9 N·m²/C².
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