1b:["$","div",null,{"className":"p-6 md:p-8","children":["$","div",null,{"className":" prose prose-lg max-w-none break-words prose-headings:font-bold prose-headings:text-slate-900 prose-p:text-slate-700 prose-p:leading-relaxed prose-strong:text-slate-900 prose-ul:list-disc prose-ol:list-decimal prose-li:text-slate-700 mb-4 [&_table]:w-auto [&_table]:max-w-full [&_table]:border-collapse [&_th]:border [&_th]:border-slate-300 [&_th]:px-3 [&_th]:py-2 [&_th]:text-left [&_td]:border [&_td]:border-slate-200 [&_td]:px-3 [&_td]:py-2 [&_table]:my-4 overflow-x-auto","dangerouslySetInnerHTML":{"__html":"

Effective resistance between ends of a diameter (wire R = 20Ω bent into circle)?

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The circle is split into two equal halves → each half = 10Ω. These two halves are in

parallel:

1/R_eff = 1/10 + 1/10 = 2/10 → R_eff = 5 Ω

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