a wire of length 2m amd 3m^2area of cross section has a resistivity of 4.8ohm calculate it's resistance
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Given : N=60 turns A=0.4 m
2
B=5×10
−5e
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
Wb
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