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| Electrical phenomena | ||
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José Luis San Emeterio |  |
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All Teaching Units |  |
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Home | |
| 4.1 Relation between field intensity and potential | |
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In the attached visual we can see a capacitator, a system
formed by two conducting plates with equal charge, but different sign,
separated by an insulator or a vacuum. The field intensity on the
inside is approximately uniform, equal at all points. You can change
the potential difference between the plates or the distance between
them.
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Observe how the field intensity value changes when you alter these magnitudes. Can you express this relation mathematically? (A relation only valid in uniform fields). Also observe how, for determined values of intensity, the insulator becomes a conductor and the charge jumps between the plates like a spark.
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Potential energy and potential | |
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What are these magnitudes? | |
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Superposition. Work in the field | |
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Conclusions | |
