Question

Which of the following is true regarding a differential?

(a) The outer wheel rotates at a higher speed than the inner wheel

(b) The outer wheel rotates at a lower speed than the inner wheel

(c) Both the wheels rotate at the same speed

(d) Front wheels rotate at a lower speed than rear wheel

I got this question in examination.

The above asked question is from The Differential & Torques in Epicyclic Gear Trains topic in section Toothed Gearing & Gear Trains of Machine Kinematics

Answer 1

Correct option is (a) The outer wheel rotates at a higher speed than the inner wheel

The explanation is: Since the outer wheels of a car has to travel a greater distance, the outer wheel must rotate at a higher speed in order to prevent slipping.