An electroscope is a device that detects charge on objects that touch it or are brought near it. John rubs a piece of cotton fab
ric on a plastic rod and then touches the rod to the electroscope. What methods of charging does John use? John charges the rod through induction, then charges the electroscope through friction. John charges the rod through conduction, then charges the electroscope through induction. John charges the rod through friction, then charges the electroscope through induction. John charges the rod through friction, then charges the electroscope through conduction.
John charges the rod through friction, then charges the electroscope through conduction.
Explanation:
When John rubs a piece of cotton fabric on a plastic rod , charge is produced when dislocation of some electron takes place through the process of friction .
When he touches the rod to the electroscope, charge is transferred to electroscope through the process of conduction . Induction involves transfer of charge without touching . In this case charge transfer takes place through conduction .
About 46 billion light years Because space expands so what we didn’t see before is what we could see now. An example could be how everyone thought Pluto was a regular sized planet but once you get a look at the bigger picture and compare it to other thing in space we now know Pluto is a dwarf planet.
