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If a long hollow copper pipe carries a direct current, the magnetic field associated with the current will be a) Only inside the pipe b) Only outside the pipe c) Neither inside nor outside the pipe d) Both inside and outside the pipe



If a long hollow copper pipe carries a direct current, the magnetic field associated with the current will be


a)      Only inside the pipe


b)      Only outside the pipe


c)       Neither inside nor outside the pipe


d)      Both inside and outside the pipe


Grade:upto college level

1 Answers

Jitender Pal
askIITians Faculty 365 Points
7 years ago

b)      Only outside the pipe

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