Question

A 2m long Wire of Cross-sectional area 4× 10^7m² has a resistance of 0.5. The resistivity of the wire is?​

Answer 1

The resistance R of a wire is given by the formula:

R = (ρ × L) / A

where ρ is the resistivity of the material, L is the length of the wire, and A is the cross-sectional area of the wire.

We can rearrange this formula to solve for ρ:

ρ = (R × A) / L

Substituting the given values, we get:

ρ = (0.5 × 4×10^7) / 2

ρ = 1×10^7 ohm-meters

Therefore, the resistivity of the wire is 1×10^7 ohm-meters.

Answer 2

THIS IS THE ANSWER FOR THE ABOVE WRITTEN QUESTION