MCQOPTIONS
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MCQOPTIONS
| 1. |
A long straight wire of radius R carries current i. The magnetic field inside the wire at distance r from its centre is expressed as: |
| A. | \[\left( \frac{{{\mu }_{0}}i}{\pi {{R}^{2}}} \right).r\] |
| B. | \[\left( \frac{2{{\mu }_{0}}i}{\pi {{R}^{2}}} \right).r\] |
| C. | \[\left( \frac{{{\mu }_{0}}i}{2\pi {{R}^{2}}} \right).r\] |
| D. | \[\left( \frac{{{\mu }_{0}}i}{2\pi R} \right).r\] |
| Answer» D. \[\left( \frac{{{\mu }_{0}}i}{2\pi R} \right).r\] | |