UCE PHYSICS 2011 PAPER 1 QTN 5

Figure 1 shows two coils P and Q close to each other

 

When switch K is closed, the bulb lights momentarily because

 

(i) An emf is induced in Q

 

(ii) An emf is induced in coil P

 

(iii) The magnetic field between P and Q changes.

 

 

 

 

 

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