In an experiment to determine internal resistance, 1/R is plotted against 1/l using r = (l₀ − l)R/l. The slope is 8 and the intercept magnitude is 4. What is the internal resistance if l₀ = 200 cm?
University of Ilorin PHY107 2026-exam past question
- 100 Ω
- 0.25 Ω
- 0.5 Ω
- 0.75 Ω
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