

MCQOPTIONS
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1. |
Pick out the expression for magnetic field strength at any point at the center of a circular loop from the following? |
A. | B = ( [ frac { mu_o I}{4 pi r} ] int_0^{2 pi r} )dl sin u206190 |
B. | B = ( [ frac { mu_o I}{4 pi r} ] int_0^{2 pi r} )dl sin u206145 |
C. | B = ( [ frac { mu_o I}{4 pi r} ] int_0^{2 pi r} )dl sin u206130 |
D. | B = [ <sub>o</sub> 4 r] ( int_0^{2 pi r} )dl sin u206190 |
Answer» B. B = ( [ frac { mu_o I}{4 pi r} ] int_0^{2 pi r} )dl sin u206145 | |