A planet revolves around the sun in an elliptical orbit. The linear speed of the planet will be maximum at:
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Using the relation, `H=B_(e) cos theta,` we get the magnitude of B given by `" " B_(e)=(H)/(cos theta)=(0.16)/(cos60^(@))=(0.16)/((1)/(2))` `" " =0.16xx2=0.32G` `or" " =0.32xx10^(-4)T " " [therefore 1G=10^(-4)T]` Direction of B: The earth's field lies in a vertical plane `12^(@)` west of geographic meridian at an angle of `60^(@)` above the horizontal line.
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