MCQOPTIONS
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MCQOPTIONS
| 1. |
A helium nucleus makes a full rotation in a circle of radius 0.8 metre in two seconds. The value of the magnetic field B at the centre of the circle will be [CPMT 1988; KCET 1998; UPSEAT 2001] |
| A. | \[\frac{{{10}^{-19}}}{{{\mu }_{0}}}\] |
| B. | \[{{10}^{-19}}{{\mu }_{0}}\] |
| C. | \[2\times {{10}^{-10}}{{\mu }_{0}}\] |
| D. | \[\frac{2\times {{10}^{-10}}}{{{\mu }_{0}}}\] |
| Answer» C. \[2\times {{10}^{-10}}{{\mu }_{0}}\] | |