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Magnetic fields flashcards
46 cards drawn from the 7 lessons of magnetic fields: 17 definitions, 21 recall prompts, 1 off-sheet equation and 7 spot-the-error cards. Grade yourself and the deck reschedules each card at staged intervals, from the next day out to three weeks.
Year 13 · Magnetic fields lessons · all 851 cards
Every card in this unit
Click any card to try it in the player above; the card itself links the lesson that teaches it.
- Magnetic flux densityDefine
- Fleming's left hand ruleDefine
- State the condition for zero force on a current-carrying wireRecall
- State the general force on a current-carrying wire, with the angle definedRecall
- Describe the magnetic field pattern of a flat circular coilDefine
- State the diagram symbols for field into and out of the pageRecall
- Magnetic flux density and the force on a wireSpot the error
- State the magnetic force on a moving charge, with its conditionRecall
- State the condition for zero magnetic force on a charged particleRecall
- State the speed selected by a velocity selectorRecall
- State the period of a charge circling in a magnetic fieldRecall
- State the general magnetic force on a moving charge, with the angle definedRecall
- Radius of a charge's circular path in a fieldEquation
- Force on a moving chargeSpot the error
- Magnetic fluxDefine
- Flux linkageDefine
- State the unit of flux linkageRecall
- The weberDefine
- State what a search coil's oscilloscope amplitude showsRecall
- Magnetic flux and flux linkageSpot the error
- Faraday's lawDefine
- Lenz's lawDefine
- State the emf across a conductor moving through a magnetic fieldRecall
- Explain why Lenz's law follows from energy conservationRecall
- State the unit of rate of change of flux linkageRecall
- Electromagnetic induction: Faraday and LenzSpot the error
- Root-mean-square valueDefine
- Peak-to-peak valueDefine
- State how mean power compares with peak power in a resistorRecall
- State the condition for the root-two rms relationsRecall
- State what the oscilloscope timebase setsRecall
- Alternating currentsSpot the error
- RectificationDefine
- Half-wave rectificationDefine
- Full-wave rectificationDefine
- SmoothingDefine
- Reservoir capacitorDefine
- RippleDefine
- State the condition for effective smoothingRecall
- State the time between peaks of a full-wave rectified 50 Hz supplyRecall
- Rectification and smoothingSpot the error
- Explain why a transformer needs acRecall
- Eddy currentsDefine
- State the purpose of laminating a transformer coreRecall
- Explain why grid transmission uses high voltageRecall
- TransformersSpot the error
The lessons these cards come from
- Magnetic flux density and the force on a wire
- Force on a moving charge
- Magnetic flux and flux linkage
- Electromagnetic induction: Faraday and Lenz
- Alternating currents
- Rectification and smoothing
- Transformers
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