A straw rubbed with paper picks up a charge and exerts a force called:
AElectroplated
BElectrostatic
CElectromotive
DElectrolytic
Answer & Solution
Correct answer: B. Electrostatic
1. Rubbing leaves the straw charged.
2. A charged body pushes or pulls other bodies.
3. That force is electrostatic force.
_Source: syllabus Science Class VIII, Chapter 8, Force and Pressure._
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