Suppose the resistance of a wire is RΩ. What will be the resistance of another wire of the same material having the same length but quadruple the diameter? a. R/2.
b. 2R.
c. R/4.
d. 4R.

Part of a control linkage for an airplane consists of a rigid member cb and a flexible cable ab. if a force is applied to the end b of the member and causes it to rotate by θ = 0.5°, determine the normal strain in the cable. originally the cable is unstretched.