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Flemings Left-hand Rule (ht Only) (GCSE Physics)

The following is a GCSE Physics test covering 'Flemings Left-hand Rule (ht Only)' from the broader topic Magnetism And Electromagnetism. The test is geared towards the AQA exam board style syllabus.
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In a typical DC motor the commutator reverses the current in the rotating coil every half-turn. Why is this necessary when combined with Fleming’s left-hand rule?
Which finger in Fleming’s left-hand rule shows the direction of the magnetic field?
A long straight conductor runs into the page (away from you) through a region where the field is from left to right. Using Fleming’s left-hand rule, what is the direction of the magnetic force on the conductor when conventional current flows into the page?
A moving-coil loudspeaker has a magnetic field from the permanent magnet directed left-to-right. If a positive current pulse flows from the front of the cone into the coil (front ? back), which initial direction does the coil (and cone) move?
In a small DC motor the commutator reverses contact so the coil current flips each half-turn. Using Fleming’s left-hand rule, why does the commutator reversing current at that moment keep rotation continuous rather than reversing it?
In Fleming’s left-hand rule which finger shows the direction of the conventional current?
A horizontal bar of length 0.40 m carries 10 A of current to the right in a magnetic field of 0.50 T directed into the page. What is the direction and magnitude of the force on the bar?
An engineering drawing shows a coil side at the front with current flowing left and the magnetic field directed from top to bottom. Using Fleming’s left-hand rule, is the front side pushed toward or away from you and why?
A student uses Fleming’s left-hand rule to find the force direction on a moving positive charge in a magnetic field. The velocity (v) is horizontal to the right and the magnetic field is upward. Which way is the magnetic force on the positive charge?
A coil in a dynamo cuts magnetic flux so an emf is induced. If the coil is rotated faster, what happens to the induced emf magnitude (and why using Fleming’s left/right hand ideas)?
A straight conductor 0.50 m long lies perpendicular to a uniform magnetic field of 0.40 T. A steady current of 8.0 A flows in the conductor. What is the magnitude of the magnetic force on the conductor?