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Electricity and Magnetism
Quick questions on Electric fields explained: H2 Physics Electricity and Magnetism
6short 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 is electric field strength?Show answer
The electric field strength at a point is the force per unit positive charge placed there:
What is electric potential?Show answer
The electric potential at a point is the work done per unit positive charge to bring it from infinity to that point:
What are the uniform field between parallel plates?Show answer
Two parallel plates with a potential difference across a separation produce a uniform field between them:
What is q1?Show answer
Define electric potential at a point. [2 marks]
What is q2?Show answer
Find the field strength midway between two parallel plates apart with across them. [2 marks]
What is q3?Show answer
State how the electric field strength and the electric potential of a point charge each depend on distance. [2 marks]
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