MCQOPTIONS
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MCQOPTIONS
| 1. |
The magnetic field of earth at the equator i approximately \[4\times {{10}^{-5}}T\]. The radius of earth is\[6.4\times {{10}^{6}}m\]. Then the dipole moment of the earth will be nearly of the order of: |
| A. | \[{{10}^{23}}\,A\,m\] |
| B. | \[{{10}^{20}}\,A\,{{m}^{2}}\] |
| C. | \[{{10}^{16}}\,A\,{{m}^{2}}\] |
| D. | \[{{10}^{10}}\,A\,{{m}^{2}}\] |
| Answer» B. \[{{10}^{20}}\,A\,{{m}^{2}}\] | |