Question

Q 10. In physics, the resistivity of a conducting
material is given by p = RA where R is its
resistance, a is its area of cross section and I is the
length of the conductor. If a 2m cylindrical wire of
diameter 0.6mm has a resistance of 50ohms,
a) Calculate its resistivity.
b) Calculate its resistance, if the same wire is
melted into a cube shaped conductor.​

Answer 1

Answer:

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