A 22 cm-diameter conducting sphere is charged to 550 V relative to V = 0 at r = ∞o? Part A What is the surface charge density σ? Express your answer using two significant figures. ΕΠΙ ΑΣΦ VA σ = Submit Request Answer Part B ? C/m² At what distance from the center of the sphere will the potential due to the sphere be only 22 V ? Express your answer using two significant figures. r = ΜΕ ΑΣΦ ← Submit Request Answer ? m

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