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When a soap bubble is given a positive c...

When a soap bubble is given a positive charge, then its radius:

A

Decreases

B

Increases

C

Remains unchanged

D

Nothing can be predicted as information is insufficient

Text Solution

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The correct Answer is:
To solve the question regarding the effect of a positive charge on the radius of a soap bubble, we can analyze the situation step by step. ### Step-by-Step Solution: 1. **Understanding the Soap Bubble**: A soap bubble is a thin film of soapy water that traps air inside. It has an outer and inner surface, and it can be charged. 2. **Charging the Soap Bubble**: When a soap bubble is given a positive charge, this charge will distribute evenly over the surface of the bubble. 3. **Behavior of Like Charges**: According to electrostatic principles, like charges repel each other. Since the soap bubble is positively charged, the positive charges on the surface will repel each other. 4. **Effect of Repulsion on Radius**: As the positive charges repel, they push away from each other. This repulsion causes the soap bubble to expand. Therefore, the radius of the soap bubble increases as a result of the repulsion among the like charges. 5. **Conclusion**: Based on the above reasoning, when a soap bubble is given a positive charge, its radius increases. ### Final Answer: The radius of the soap bubble increases when it is given a positive charge. ---
To solve the question regarding the effect of a positive charge on the radius of a soap bubble, we can analyze the situation step by step. ### Step-by-Step Solution: 1. **Understanding the Soap Bubble**: A soap bubble is a thin film of soapy water that traps air inside. It has an outer and inner surface, and it can be charged. 2. **Charging the Soap Bubble**: When a soap bubble is given a positive charge, this charge will distribute evenly over the surface of the bubble. ...
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