MCQOPTIONS
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MCQOPTIONS
| 1. |
A helium nucleus makes a full rotation in a circle of radius 0.8 meter in 2 sec. The value of the magnetic field induction B in tesla at the centre of circle will be |
| A. | \[2\times {{10}^{-19}}{{\mu }_{0}}\] |
| B. | \[{{10}^{-19}}/{{\mu }_{0}}\] |
| C. | \[{{10}^{-19}}{{\mu }_{0}}\] |
| D. | \[2\times {{10}^{-20}}/{{\mu }_{0}}\] |
| Answer» D. \[2\times {{10}^{-20}}/{{\mu }_{0}}\] | |