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Electric Charges and Fields
Question
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A current loop in a magnetic field

  • experiences a torque whether the field is uniform or non-uniform in all orientations

  • can be in equilibrium in one orientations

  • can be an equilibrium in two orientations, both the equilibrium states are unstable

  • can be in equilibrium in two orientations, one stable while the other is unstable

Answer

D.

can be in equilibrium in two orientations, one stable while the other is unstable

For parallel M is stable and for antiparallel is unstable.

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Some More Questions From Electric Charges and Fields Chapter

Figure shows tracks of three charged particles in a uniform electrostatic field. Give the signs of the three charges. Which particle has the highest charge to mass ratio?