Electrostatics
Coulomb's law, electric field/potential, Gauss's law and capacitance.
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Take a full mock →Q1 · Electrostatics · MEDIUM
Two point charges +Q and -Q are placed at coordinates (0, a) and (0, -a) respectively. What is the electric field at a point (x, 0) on the x-axis, assuming x >> a?
Q2 · Electrostatics · EASY
Two point charges +3 μC and +12 μC are placed 30 cm apart. At what distance from the +3 μC charge along the line joining them will the electric field be zero?