Question

a wire of length 2m amd 3m^2area of cross section has a resistivity of 4.8ohm calculate it's resistance​

Answer 1

Given : N=60 turns A=0.4 m

2

B=5×10

−5

T

Angle between magnetic field and area vector of coil θ=0

o

Thus magnetic flux passing through the coil ϕ=NBA cosθ

∴ ϕ=60×5×10

−5

×0.4×cos0

o

=1.2×10

−3

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Answer 2

Explanation:

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