A) \[\frac{B}{6}\]
B) \[\frac{B}{4}\]
C) \[\frac{B}{3}\]
D) \[\frac{B}{2}\]
Correct Answer: B
Solution :
Magnetic field due to straight wire at point A \[{{\Beta }_{\Alpha }}=\Beta =\frac{{{\mu }_{\operatorname{o}}}\operatorname{I}}{2\pi \left( 5\times {{10}^{-2}} \right)}\] ?.(1) \[{{\Beta }_{\operatorname{B}}}=\frac{{{\mu }_{\operatorname{o}}}\operatorname{I}}{2\pi \times \left( 20\times {{10}^{-2}} \right)}\] ?.(2) by (1) & (2) \[{{\Beta }_{\operatorname{B}}}=\frac{B}{4}\]You need to login to perform this action.
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