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Which configuration is widely used in circuits ? |
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Answer» Solution :POTENTIAL energy of the configuration arises due to the potential energy of one DIPOLE (say, Q) in the magnetic field due to other (P) `Bp=(mu_0)/(4PI)(m_p)/(r^3)` (on the normal BISECTOR ) `B_p=(mu_02)/(4pi)(m_p)/r^3` (on the axis where mp is the magnetic moment of the dipole P. Equilibrium is stable when `m_Q` is parallel to `B_p` and when it is anti - parallel to `B_p` . For instance for configuration `Q_3` for which Q is along the perpendicular bisector of the dipole P, the magnetic moment of Q is parallel to the magnetic field at the position 3. Hence `Q_3` is stable THUS, a. `PQ_1 and PQ_2""`b. (i) `PQ_3,PQ_6` (stable), (ii) `PQ_5,PQ_4` (unstable) c. `PQ_6` |
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