AQA · GCSE · Physics · Higher
Electric Field Strength with Distance
The charged metal dome creates an electric field.
How does the electric field strength vary as the distance from the charged metal dome increases?
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Marking points
- 1 States that electric field strength decreases as distance increases.
Full-mark answer
The electric field strength decreases as the distance from the dome increases.
Why this answer loses marks
The field stays the same because the dome charge is unchanged.
The source charge can stay unchanged while field strength varies with position; increasing distance makes the field weaker.