MCQOPTIONS
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MCQOPTIONS
| 1. |
A coil having N turns carry a current I as shown in the figure. The magnetic field intensity at point P is [BHU 2003; CPMT 2004] |
| A. | \[\frac{{{\mu }_{0}}NI{{R}^{2}}}{2{{({{R}^{2}}+{{x}^{2}})}^{3/2}}}\] |
| B. | \[\frac{{{\mu }_{0}}NI}{2R}\] |
| C. | \[\frac{{{\mu }_{0}}NI{{R}^{2}}}{{{(R+x)}^{2}}}\] |
| D. | Zero |
| Answer» B. \[\frac{{{\mu }_{0}}NI}{2R}\] | |