Q9 of 47 Page 406

Three diagrams in the following figures show the magnetic field lines between the poles of the magnets. Identify the poles between A,B,C,D,E and F.

(i) A is North Pole and B is South Pole because magnetic field lines originate from North Pole and ends at South Pole.


(ii) C and D are South Pole because the magnetic field lines end at the South Pole and same type of poles repel each other.


(iii) E and F are South Pole because the magnetic field lines end at the South Pole and same type of poles repel each other.


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A small valued resistance XY is connected across the ends of a coil. Predict the direction of induced current in the resistance XY when


(i) South pole of a magnet moves towards end A of the coil.


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