Phy30 L06-09

Multiple Choice

What is the fundamental unit of charge?

• N

• q

• F

• C

Physics 30 EXIT SLIP #1 (3 marks)

Using the a table similar to what was on the previous slide, lets compare the static electric force within an atom to that of the gravitations force. To do this, lets use the simplest atomic model of that of hydrogen (one proton & one electron)

• ensure you have the needed information for calculating Fe

• then, confirm how you intend on calculating Fg

• finally, what/which approach will your use to compare the two forces both acting on the charged particles

Poll

What might happen to the electrons, if a conducting wire connects both ends (electrodes) of this dipole (battery)?

• they move (in the conductor) away from the positive

• they move (in the conductor) away from the negative

• they move (in the battery) away from the positive

• they move (in the battery) away from the negative

• nothing