The batteries negative terminal will be part of this side of the ...

[sc00by25]

The batteries negative terminal will be part of this side of the circuit:
 
  a. hot side
 b. ground side
 c. cold side d. high side

Question 2

To make the strongest electromagnet you would:
 
  a. make a loop of wire
 b. make several loops of wire and reverse the current flow
 c. make several loops of wire around an iron core
 d. make several loops of wire around a piece of plastic

[akemokai]

Answer to Question 1

B

Answer to Question 2

C