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10 questions from this quiz
Region where charged particles feel force
Positive
Radially outward from the sphere
Radially inward toward the sphere
Stronger electric field
F=Q1Q24πε0r2F = \frac{Q_1Q_2}{4\pi\varepsilon_0r^2}F=4πε0r2Q1Q2
8.85×10−128.85 \times 10^{-12}8.85×10−12 F m−1^{-1}−1
To avoid distorting the field measured
As a point charge at the centre
Many orders of magnitude greater
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