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Consider the following statement: a) When a soap bubble is negatively charged, its radius increases. b) When a soap bubble is negatively charged, its mass increases. Which of the above statement is/are correct?

Consider the following statement: a) When a soap bubble is negatively charged, its radius increases. b) When a soap bubble is negatively charged, its mass increases. Which of the above statement is/are correct? Correct Answer Both a and b are correct

CONCEPT:

Electric Charge

  • It is defined as the intrinsic property of certain fundamental particles like electrons, proton, etc, due to which they produce electric and magnetic effects.
  • Types of electric charge
    1. ​Positive charge: A body having a deficiency of electrons.
    2. ​Negative charge: A body having an excess of electrons.
  • Properties of electric charge
    • Like charges repel and unlike charges attract each other.
    • A charge is a scalar quantity.
    • A charge is always quantized.
    • A charge will always remain conserved.
    • A charge is always associated with mass.
    • The unit of charge is the coulomb.

⇒ 1 coulomb= charge on 625 × 1016 electrons

EXPLANATION:

  • Like charges repel and unlike charges attract each other.
  • Due to the repulsion force between the negative charge on the soap bubble, its radius will increase.
  • A charge is always associated with mass.
  • To produce a negative charge on the soap bubble, some electrons will give to it, which will add some mass to the soap bubble, and its mass increases.
  • So both the statements are correct.
  • Hence, option 3 is correct.

Related Questions

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