A regular tetrahedron frame is made up of homogeneous resitance wire of uniform cross section. Current I enters vertex A through a long, straight wire directed towards the centre O of the tetrahedron and is conducted away through vertex B in the same way, as illustrated in the figure. Choose CORRECT statement (s) A. There is no current through wire DC because point D cand C are equipotentialB. Current through wire AB is `I//2`C. Current through wire AC is `I//4`D. Net magnetic field at point O is zero

A regular tetrahedron frame is made up of homogeneous resitance wire o

1.	A regular tetrahedron frame is made up of homogeneous resitance wire of uniform cross section. Current I enters vertex A through a long, straight wire directed towards the centre O of the tetrahedron and is conducted away through vertex B in the same way, as illustrated in the figure. Choose CORRECT statement (s) A. There is no current through wire DC because point D cand C are equipotentialB. Current through wire AB is `I//2`C. Current through wire AC is `I//4`D. Net magnetic field at point O is zero
Answer» Correct Answer - A::B::C::D From symmetry `I_(CD)=0` `I_(AB)=I//2` and `I_(AC)=I_(CB)=I_(AD)=I_(DB)=I//2` and net field at centre is zero

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