The charged metal dome creates an electric field.
What is an electric field?
How to approach this question
Recall the definition of an electric field. It describes the effect of a charge on the space around it. What would happen if you placed another charge in that space?
Full Answer
An electric field is a region of space around a charged object within which a force would be exerted on another charged object. It is a vector field, meaning it has both magnitude and direction at every point. The direction of the field is defined as the direction of the force that would be exerted on a small positive test charge placed at that point.
Common mistakes
✗ Confusing an electric field with a magnetic field.
✗ Vague answers like "the area around a charge". The key idea is the experience of a force.
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