Question: What is the relationship between torque and shear stress in a circular shaft?

Options:

1. τ = T / J
2. τ = J / T
3. τ = T * J
4. τ = T + J

Correct Answer: τ = T / J

Solution:

The shear stress (τ) in a circular shaft is related to the torque (T) and the polar moment of inertia (J) by the formula τ = T / J.