What apparatus did Henry Cavendish use in his experiment to determine the gravitational constant?

What apparatus did Henry Cavendish use in his experiment to determine the gravitational constant? Correct Answer 1 bar, 2 small spheres and 2 large spheres

Henry Cavendish used 1 bar, 2 small spheres and 2 large spheres in his experiment to determine the gravitational constant. By measuring the torque and angle of deflection produced due to the proximity of large spheres to the small ones, Henry Cavendish was able to determine the universal gravitational constant.
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