Questions
A long copper tube of inner radius R carries a current i. The magnetic field B inside the tube is
a
μ0i2πR
b
μ0i4πR
c
μ0i2R
d
Zero
detailed solution
Correct option is D
Magnetic field inside the hollow conductor (tube) is zero.Talk to our academic expert!
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Magnetic induction on the surface of a long current carrying wire of radius R is 8 µT. Then magnetic induction at a distance R/4 from the axis of the conductor is
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