tracy scuffs her socked feet across a carpet. when she touches a doorknob, she gets a small shock. how did…

tracy scuffs her socked feet across a carpet. when she touches a doorknob, she gets a small shock. how did tracy become charged?\n○ through friction between her hand and the doorknob\n○ through friction between her feet and the carpet\n○ through conduction between her hand and the doorknob\n○ through conduction between her feet and the carpet

tracy scuffs her socked feet across a carpet. when she touches a doorknob, she gets a small shock. how did tracy become charged?\n○ through friction between her hand and the doorknob\n○ through friction between her feet and the carpet\n○ through conduction between her hand and the doorknob\n○ through conduction between her feet and the carpet

Answer

Brief Explanations:

When Tracy scuffs her socked feet across the carpet, friction occurs between her feet and the carpet. This friction causes electrons to be transferred from the carpet to her body, charging her. When she touches the doorknob, the excess charge is discharged as a shock. It's not due to friction between hand and doorknob as the charging starts with foot - carpet interaction. Also, it's not conduction between feet and carpet for charging (conduction is for charge transfer after charging occurs), and not conduction between hand and doorknob for the initial charging process.

Answer:

through friction between her feet and the carpet