An electron moving from the negative terminal to the positive ...

[ereecah]

An electron moving from the negative terminal to the positive terminal of a 12. volt battery gains (or loses) how much energy? (Be sure to indicate whether it is a gain or loss.)
 
  What will be an ideal response?

Question 2

An ideal ammeter should
 
  A) have a high coil resistance.
  B) introduce a very small series resistance into the circuit whose current is to be measured.
  C) introduce a very large series resistance into the circuit whose current is to be measured.
  D) consist of a galvanometer in series with a large resistor.

[mtmmmmmk]

Answer to Question 1

Loses 12. eV = 1.9  10-19 J

Answer to Question 2

B