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Question 57 HCV Chapter 35 if someone could explain please

Question 57 HCV Chapter 35 if someone could explain please
 

Grade:12

2 Answers

saayan mitra
46 Points
7 years ago
first determine B of outer circle by using nU.i \ 2a tht is in direction horizontal to west n using same formula find B for small circle which is in dirn. downwards. B of both are 4pi x 10^-4.
Bnet= [(4pi x 10^-4)^ + (4pi x 10^4)^2]^ .5 = 1.8mT (app)
saayan mitra
46 Points
7 years ago
plz approve
 

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