PhysicsMediumHigh School (11–12)Electricity & Magnetism › ElectrostaticsElectricity & Magnetism › Current ElectricityBoard ExamAPA-LevelIB
Created by StemPy LabAssertion (A): A neutral metal sphere stays neutral as a whole when a charged rod is held near it. Reason (R): The rod only shifts the free electrons of the sphere. It does not add charge or take it away.
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← Assertion (A): The gravitational force between two electrons is negligible when compared with the electrical force between them. Reason (R): The ratio of the two forces does not depend on the distance between the electrons.A charge of +7 µC is at x = 0 and a charge of +5 µC is at x = 80 cm. A charge of -2 µC is placed at x = 20 cm. What is the size of the net force on it? →
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