Electromagnetic Induction

Understandings:

• Electromotive force (emf)
• Magnetic flux and magnetic flux linkage
• Faraday’s law of induction
• Lenz’s law

Applications and skills:

• Describing the production of an induced emf by a changing magnetic flux and within a uniform magnetic field
• Solving problems involving magnetic flux, magnetic flux linkage and Faraday’s law
• Explaining Lenz’s law through the conservation of energy

Guidance:

• Quantitative treatments will be expected for straight conductors moving at right angles to magnetic fields and rectangular coils moving in and out of fields and rotating in fields
• Qualitative treatments only will be expected for fixed coils in a changing magnetic field and ac generators