What are electric fields? (AQA A-Level Physics): Quizzes

Region where charged particles feel force

Positive

Radially outward from the sphere

Radially inward toward the sphere

Stronger electric field

$F = \frac{Q_1Q_2}{4\pi\varepsilon_0r^2}$

$8.85 \times 10^{-12}$ F m$^{-1}$

To avoid distorting the field measured

As a point charge at the centre

Many orders of magnitude greater