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Magnetism and Electromagnetism
Quick questions on Force on a current-carrying conductor explained: O-Level Physics
4short 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 fleming's left-hand rule?Show answer
Fleming's left-hand rule gives the direction of the force. Hold the thumb and first two fingers of the left hand at right angles:
What is q1?Show answer
Name the rule used to find the direction of the force on a current-carrying conductor in a magnetic field. [1 mark]
What is q2?Show answer
State two ways to increase the force on a current-carrying wire in a magnetic field. [2 marks]
What is q3?Show answer
Explain the purpose of the split-ring commutator in a d.c. motor. [2 marks]
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