This is a fifteenth chapter of the book Physics 12 published by Punjab Curriculum and Textbook Board, Lahore, Pakistan.
Recall that a changing magnetic flux through a circuit causes an emf to be induced in the circuit.
Know that the induced emf lasts so long as the magnetic flux keeps changing.
Determine Motional emf.
Use Faraday's law of electromagnetic induction to determine the magnitude induced emf.
Apply Lenz's law to determine the direction of induced emf.
Recognize self and mutual induction.
Define mutual inductance, self-inductance and its unit henry.
Know and use the formula $E=\frac{1}{2} LI^2$
Calculate the energy stored in an inductance.
Describe the principle, construction and operation of an AC and DC generator.
Describe the principle, construction and operation of DC motor.
Recognize back emf in motors and back motor effect in generators.
Describe the structure and principle of operation of transformer.
Use $\frac{N_s}{N_p}= \frac{V_s}{V_p}$ and $V_p I_p=V_s I_s$ for an ideal transformer.
Apply transformer equation to solve the problems.
Understand and describe eddy currents and use of laminated core.