Question

what is coork done in moving
dipole from 30° to 60°
in
an eacternal field E​

Answer 1

Answer:

Let the workdone by external force be W. Then,

W = Pe( Cosi - cosf )

W = q(2l)E × ( cos60 - cos30 )

$w \: = \: 2ql e \: \: (1 \div 2 \: - \sqrt{3} \div 2)$

$w \: = \: 2qle( \frac{1 - \sqrt{3} }{2} )$

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