Please explain why the answer to the above question is zero.
Rishabh Sood , 7 Years ago
Grade 11
Magnetism> Please explain why the answer to the abov...
1 Answers
aritra maity
Last Activity: 7 Years ago
As conductor is connected with the cell, the potential difference across two paths (two possible paths i.e. one upside and one downside path) is same.
V1 = V2
I1R1=I2R2
I1dl1=I2dl2 (as resistivity and area of cross section same )
Now,
field, due to one path, is opposite due to another part. So magnetic field at the center is
[sin 90 = 1 , i1dl1 = i2dl2]
= 0 (proved)
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