Practice 140 free MHT-CET Physics - 18. Electric Charges And Field questions with answers and step-by-step solutions.
$A$ Van de Graaff generator produces:
An electric dipole of dipole moment $p$ is aligned parallel to a uniform electric field $E$. The energy required to rotate the dipole by $90^{\circ}$ is $\left[\begin{array}{ll}\sin 0^{\circ}=0, & \sin 90^{\circ}=1 \\ \cos 0^{\circ}=1, & \cos 90^{\circ}=0\end{array}\right]$
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