MCQOPTIONS
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MCQOPTIONS
| 1. |
The magnetic field at the centre of current carrying coil is [CPMT 1996; RPET 2002, 03] |
| A. | \[\frac{{{\mu }_{0}}ni}{2r}\] |
| B. | \[\frac{{{\mu }_{0}}}{2\pi }\frac{ni}{r}\] |
| C. | \[\frac{{{\mu }_{0}}ni}{4r}\] |
| D. | \[{{\mu }_{0}}ni\] |
| Answer» B. \[\frac{{{\mu }_{0}}}{2\pi }\frac{ni}{r}\] | |