Centrifugal tension in belts is :
Option (A)
Useful because it maintains some tension even when no power is transmitted
Option (B)
Not harmful because it does not take part in power transmission
Harmful because it increases belt tension and reduces the power transmitted
A hypothetical phenomenon and does not actually exist in belts.
Correct Option:
Question Solution:
Increase in centrifugal force is harmful as belt tries to come out of the pulley and it also reduces the power transmission.