Electric Fields
A balloon is rubbed on a wollen jumper and then stuck to a classroom wall. Explain how it sticks to the wall
The balloon is charged by the rubbing motion. This charge causes the induction of an opposite charge in the wall. As opposite charges attract the balloon sticks to the wall due to the electrostatic force.
Is that right?
The balloon is charged by the rubbing motion. This charge causes the induction of an opposite charge in the wall. As opposite charges attract the balloon sticks to the wall due to the electrostatic force.
Is that right?
Original post by turn and fall
A balloon is rubbed on a wollen jumper and then stuck to a classroom wall. Explain how it sticks to the wall
The balloon is charged by the rubbing motion. This charge causes the induction of an opposite charge in the wall. As opposite charges attract the balloon sticks to the wall due to the electrostatic force.
Is that right?
The balloon is charged by the rubbing motion. This charge causes the induction of an opposite charge in the wall. As opposite charges attract the balloon sticks to the wall due to the electrostatic force.
Is that right?
That's all correct.
Charge is transferred from the jumper to the balloon. (The jumper will have an equal and opposite charge to the balloon.)
You just need to add that the balloon is an insulator. It's this fact that stops the charges conducting away, and makes them stay where they are on its surface.
Quick Reply
Related discussions
- How do I find the electric potential and field strength between two point charges?
- Aiming an Oscilloscope Beam
- Aqa A level physics Electric field question (1)
- what is Q in E=kQ/r^(2)
- A level physics question
- A level physics electric field mcq
- career guidance
- can someone help me with gcse physics
- Question on static electricity
- help needed please
- OCR A physics paper 3
- Geomagnetic storms cause me to get tachycardia. Magnetic fields mess up my heart
- Help with (AQA) Thermal Physics / Electric Fields A-Level question?
- Ranking all engineering fields
- How exactly does step up/down transformers work?
- Electric Fields Help
- I don't know what subject to pick
- Things to do in gap years?
- How to Decrease Deflection of Electrons?
- uni after apprenticeship?
