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For twisting couple on a wire, considering usual notations, the equation of its shearing strain will be
ϕ = π r 2 θ l
ϕ = r θ l
ϕ = π r 2 θ 2 l
ϕ = π 2 r θ l
ϕ =r θl
Quick Summary: Practice and solve "For twisting couple on a wire, considering usual notations, the equation of its shearing strain will..." for Electrical - Electrical Materials. The correct answer is Option B: ϕ =r θl. Detailed step-by-step solution, conceptual clarity, and formulas on Examoogle.
Answer:
Option **(b) **