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Unit 3: Gravity and Electromagnetism
Quick questions on Electric fields and potential: WACE Year 12 Physics Unit 3
2short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What are the uniform field between parallel plates?Show answer
Two oppositely charged parallel plates produce a uniform field (except near the edges). Its magnitude is
What is motion of a charge in a uniform field?Show answer
A charged particle entering a uniform field experiences a constant force, so its path is a parabola in exactly the same way a projectile is. The component along the field accelerates uniformly while the perpendicular component stays constant. This deflection of charges is the basis of cathode-ray tubes and is a favourite exam scenario.
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