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When s person combs his hair, static ele...

When s person combs his hair, static electricity is sometimes generated by what process?

A

Contact between the comb and hair results in a charge.

B

Friction between the comb and hair results in a charge.

C

Deduction between the comb and hair.

D

Induction between the comb and hair.

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The correct Answer is:
**Step-by-Step Solution:** 1. **Understanding Static Electricity**: Static electricity is a buildup of electric charge on the surface of objects. It occurs when there is an imbalance of electric charges within or on the surface of a material. 2. **Identifying the Process**: When a person combs their hair, there is a physical interaction between the hair and the comb. This interaction is primarily due to friction. 3. **Frictional Charge Transfer**: As the comb moves through the hair, friction causes electrons to be transferred from one material to the other. In this case, electrons may move from the hair to the comb or vice versa. 4. **Resulting Charges**: Due to this transfer of electrons, one object (either the hair or the comb) becomes positively charged (loses electrons), while the other becomes negatively charged (gains electrons). This results in static electricity. 5. **Conclusion**: Therefore, the static electricity generated when a person combs their hair is due to the friction between the comb and the hair, which leads to the transfer of charge. ---

**Step-by-Step Solution:** 1. **Understanding Static Electricity**: Static electricity is a buildup of electric charge on the surface of objects. It occurs when there is an imbalance of electric charges within or on the surface of a material. 2. **Identifying the Process**: When a person combs their hair, there is a physical interaction between the hair and the comb. This interaction is primarily due to friction. 3. **Frictional Charge Transfer**: As the comb moves through the hair, friction causes electrons to be transferred from one material to the other. In this case, electrons may move from the hair to the comb or vice versa. ...
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NCERT FINGERTIPS ENGLISH-ELECTRIC CHARGES AND FIELDS-Assertion And Reason
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