Engineer Electronics
Engineer Electronics (전자기사, South Korea)
ElectromagneticsEnglish
Exam overviewPractice session
Two point charges of +4 μC and −4 μC are placed 2 m apart in free space. According to Coulomb's law (쿨롱의 법칙), what is the magnitude of the electrostatic force on either charge? Use 1/(4πϵ0) = 9×10^9 N·m²/C².
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