A) 2.2
B) 1.8
C) 0.7
D) 3.6
Correct Answer: C
Solution :
\[{{f}_{1}}=\frac{1}{2\pi }\sqrt{\frac{\mu {{B}_{1}}\cos {{45}^{o}}}{I}}{{f}_{2}}=\frac{1}{2\pi }\sqrt{\frac{\mu {{B}_{2}}\cos {{30}^{o}}}{I}}\] \[\frac{{{f}_{1}}}{{{f}_{2}}}=\sqrt{\frac{{{B}_{1}}\cos {{45}^{o}}}{{{B}_{2}}\cos {{30}^{o}}}}\]\[\therefore \]\[\frac{{{B}_{1}}}{{{B}_{2}}}0.7\]You need to login to perform this action.
You will be redirected in
3 sec