Question

A long straight wire of radius a carries a steady current I . The current is uniformly distributed across its cross section. The ratio of magnetic field at a/4 inside and a/4 outside from the surface of wire is
1:1
7:16
15:16
16:9

Answer 1

Answer:

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Explanation:

A long straight wire of radius a carries a steady current I . The current is uniformly distributed across its cross section. The ratio of magnetic field at a/4 inside and a/4 outside from the surface of wire is

A long straight wire of radius a carries a steady current I . The current is uniformly distributed across its cross section. The ratio of magnetic field at a/4 inside and a/4 outside from the surface of wire is1:1

A long straight wire of radius a carries a steady current I . The current is uniformly distributed across its cross section. The ratio of magnetic field at a/4 inside and a/4 outside from the surface of wire is1:17:16

A long straight wire of radius a carries a steady current I . The current is uniformly distributed across its cross section. The ratio of magnetic field at a/4 inside and a/4 outside from the surface of wire is1:17:1615:16

A long straight wire of radius a carries a steady current I . The current is uniformly distributed across its cross section. The ratio of magnetic field at a/4 inside and a/4 outside from the surface of wire is1:17:1615:1616:9