Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Electric Charges and Fields

Question:
What happens when some charge is placed on a soap bubble?
Options:
Its radius increases
Its radius decreases
Bubble collapses
No change observed
Correct Answer:
Its radius increases
Explanation:
When some charge is placed on a soap bubble then the radius of the bubble will increase. Firstly, the charge will be distributed uniformly on the surface of a bubble. Secondly, the bubble will expand because the charged particles uniformly distributed on it cause them to repel each other due to the electrostatic force.