Question

The friction is needed to be reduced because
O will increase the load
O will increase the consumption electricity
O it will be reducing the excess heat generation
O will increase the excess the heat generation​

Answer 1

Answer:

It will be reducing the excess heat generation

Explanation:

Frictional force or Friction opposes motion between any surfaces that are in contact. Friction is a necessary evil means it can work for and against us, sometimes desirable and sometimes not.

• Without friction, we would not be able to write or walk. thus friction is desirable in such cases.

• It produces heat in the case of heavier objects. It makes the surface molecules move faster which is why they possess a high temperature and feel warmer. so the ' friction heat' generated can be harmful to vehicle engines or machines. Thus is undesirable.

• The frictional heat can cause mechanical parts to seize and reduces the working efficiency.

Thus it is needed to be reduced because it will be reducing the excess heat generation just to increase the smooth efficient working of machines or engines to last longer.