Use the following to answer question 46 I . increase the current

II. use a stronger magnet

III. use thicker wire

IV. reverse the battery

V. add more coils of wire inside the magnet

46. To increase the force with which the wire is pushed when the switch is closed, which of
the following things could be done?

a. I and II only
b. II, III, and IV only
C. II and IV only
d. I, II and V only

47. A group of students had built a homemade motor and were in the process of trying to
test it. When they hooked it up to their battery they found that the wires in their coil got hot, but the coil would not turn. Of the following solutions, which would be their best
course of action to make the motor spin?

a. add more wire to the coil

b. use a stronger magnet

C. use a higher voltage battery

d. plug into an AC source