If negligibly small current is passed though a wire of length 15 m and resistance of 5 Ω, having uniform cross section of 6 × 10-7 m 2, then coefficient of resistivity of material is

Question

If negligibly small current is passed though a wire of length 15 m and resistance of 5 Ω, having uniform cross section of 6 × 10-7 m 2, then coefficient of resistivity of material is (A) 1 × 10-7 Ω- m (B) 2 × 10-7 Ω- m (C) 3 × 10-7 Ω- m (D) 4 × 10-7 Ω- m

Tardigrade Admin · Accepted Answer

(Hint ⇒ ρ=( text R.A /ℓ)= Coefficient of resistivity)

Q. If negligibly small current is passed though a wire of length $15 m$ and resistance of $5 Ω$ , having uniform cross section of $6 \times 1 0^{- 7} m^{2}$ , then coefficient of resistivity of material is

$1 \times 1 0^{- 7} Ω - m$

$2 \times 1 0^{- 7} Ω - m$

$3 \times 1 0^{- 7} Ω - m$

$4 \times 1 0^{- 7} Ω - m$

(Hint $\Rightarrow ρ = \frac{R.A}{ℓ} =$ Coefficient of resistivity)

Q. If negligibly small current is passed though a wire of length 15m and resistance of 5Ω, having uniform cross section of 6×10−7m2, then coefficient of resistivity of material is

1×10−7Ω−m

2×10−7Ω−m

3×10−7Ω−m

4×10−7Ω−m