Sara walks across a rug on the floor when the doorbell rings. She opens a door and gets a shock. What type of charge will Sara have after the shock? Explain how you know in 1-2 sentences.

Answer 1

After the shock, Sara will likely have a positive charge. This is because as she walks across the rug, friction causes electrons to transfer from her body to the rug, resulting in a deficit of electrons and hence a net positive charge on her.