A) 5:1
B) 2:1
C) 10 : 1
D) 1 : 2
Correct Answer: A
Solution :
From Bio-savarts law the magnetic field at the centre is directly proportional to the length of current carrying segment. \[\frac{{{B}_{1}}}{{{B}_{2}}}=\frac{length\,of\,PQR}{length\,of\,PSR}\] \[=\frac{{{300}^{o}}}{{{60}^{o}}}=\frac{5}{1}\]You need to login to perform this action.
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