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2 circular coils made of the same mterial with coil B having half the radius of coil A. what is the ratio of current through them so tha the magnetic field at the centre is same?

SUDHARSANA V V , 7 Years ago
Grade 10
anser 1 Answers
Arun

Last Activity: 7 Years ago

Dear student
 
B = \mu0/4(pi)  * (2*pi* i)/r
 
Use this as 
r1 = 2 * r2
Now
Magnetic field is same hence
i1 = 2* i2
 
 
Regards
Arun (askIITians forum expert)

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