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Calculate the work done to twist a steel wire by an angle 45° having radius as 1 mm and length as 25 cm. Modulus of rigidity of steel is 8 × 10¹¹ dyne/cm².

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Calculate the work done to twist a steel wire by an angle 45° having radius as 1 mm and length as 25 cm. Modulus of rigidity of steel is 8 × 1011 dyne/cm2.

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Calculate the work done to twist a steel wire by an angle 45° having radius as 1 mm and length as 25 cm. Modulus of rigidity of steel is 8 × 10¹¹ dyne/cm².