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प्रश्न
List three disadvantages of friction.
संक्षेप में उत्तर
उत्तर
Disadvantages of friction:
- Friction produces heat which damages the moving parts of a machine.
- Friction produces wear and tear on the contacting surfaces. This reduces the life of machine parts, tires and shoe soles.
- A lot of energy is wasted due to friction to overcome it before moving.
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Advantages and Disadvantage of Friction
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संबंधित प्रश्न
Write true or false.
The force of friction is always disadvantageous.
Select the correct alternative.
Friction
Answer the following in detail.
How is friction harmful to us? Write some ways by which one can reduce friction.
Fill in the blank.
................ causes wear and tear of moving parts of the machine.
Friction is the only reason for the loss of energy.
Friction is a necessary evil - Explain.
Explain the advantages and disadvantages of friction.
