| S No | Question |
| Question 1 | Make a list of similarities and differences between the motor effect and electromagnetic induction in a moving wire (the dynamo effect). See Answer |
| Question 2 | For a simple motor, why must the back emf always be smaller than the applied potential difference? See Answer |
| Question 3 | What factors limit the size of the back emf? See Answer |
| Question 4 | Why does the back emf tend to decrease as the rate of doing work increases? See Answer |
| Question 5 | emf and change in current. See Answer |
| Question 6 | Dimensional correctness. See Answer |
| Question 7 | Give formula for the flux linkages in terms of angular orientation See Answer |
| Question 8 | Explain eddy current in terms of Lenz’s law. Also by drawing suitable diagram show the direction of eddy current and the polarity produced in the sheet as a result of magnetic field. See Answer |
| Question 9 | How electromagnetic brakes work? Explain. See Answer |
Question 10: A bar magnet is dropped inside a long vertical tube. If the tube is made of metal, the magnet quickly approaches a terminal speed, but if the tube is made of cardboard the magnet falls with constant acceleration. Explain why the magnet falls differently in the metal tube than it does in the cardboard.
Pingback:eddy-current-its-minimization – msa
Pingback:electromagnetic-induction-simple-experiments – msa
Pingback:numerical-problems-on-electromagnetic-induction-chapter-4-physics-12 – msa
Pingback:Comprehensive Questions on Electromagnetic Induction, Physics 12 … msa – msa
Pingback:magnet-dropped-in-metal-tube – msa
Pingback:conceptual-question-9-electromagnetic-induction-physics-12-msa – msa
Pingback:Eddy current & Lenz’s law, its polarity. Physics-12… msa – msa
Pingback:formula-for-flux-at-angular-orientation – msa
Pingback:dimensional-correctness – msa
Pingback:emf-and-change-in-current – msa
Pingback:back-emf-and-rate-of-doing-work – msa
Pingback:factors-limiting-back-emf – msa
Pingback:why-is-back-emf-smaller-than-applied-p-d – msa
Pingback:similarities-and-differences-in-motor-effect-and-electromagnetic-induction – msa
Pingback:Physics 12 – msa