A rod of infinite length has a charge per unit length of $\lambda$ (= q/l). Gauss's law makes it easy to determine that the electric field strength at a perpendicular distance r from the rod is, in terms of k = (4$\pi$$\isin$₀)^-1, A) k$\lambda$/r² B) k$\lambda$/r C) 4 $\pi$k$\lambda$/r D) 2k$\lambda$/r E) zero

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The Answer of A rod of infinite length has a charge per unit length of $\lambda$ (= q/l). Gauss's law makes it easy to determine that the electric field strength at a perpendicular distance r from the rod is, in terms of k = (4$\pi$$\isin$₀)^-1, A) k$\lambda$/r² B) k$\lambda$/r C) 4 $\pi$k$\lambda$/r D) 2k$\lambda$/r E) zero

A Rod of Infinite Length Has a Charge Per Unit λ\lambdaλ

A Rod of Infinite Length Has a Charge Per Unit $\lambda$