where Δpz:=div(|∇z|p−2∇z), 1<p<n, λ is a positive parameter, r0>0 and ΩE:={x∈Rn | |x|>r0}. Here the weight function K∈C1[r0,∞) satisfies K(r)>0 for r≥r0, limr→∞K(r)=0, and the reaction term f∈C[0,∞)∩C1(0,∞) is strictly increasing and satisfies e9c4dae6a3f3497ab947229" title="Click to view the MathML source">f(0)<0 (semipositone), 8bdbc77500934873d946bd58fe18">, lims→∞f(s)=∞, 940ee95f6cd2"> and 8bc7ad01fc07568a7"> is nonincreasing on 9913f49afa626400eb66cbdec95e43bf" title="Click to view the MathML source">[a,∞) for some e9b" title="Click to view the MathML source">a>0 and 992323ff62a" title="Click to view the MathML source">q∈(0,p−1). For a class of such steady state equations it turns out that every nonnegative radial solution is strictly positive in the exterior of a ball, and exists for λ≫1. We establish the uniqueness of this positive radial solution for λ≫1.