1. The magnetic flux depends on which of the following?
a. Strength of the field
b. Strength of the field and the effective area
c. Speed of rotation
d. Effective area
2. If the amount of turns "N" increases, how does the EMF change?
a. Increases
b. Decreases
c. The amount of turns has no effect
3. A coil is made from N loops of wire. Which of the following is true?
a. The loops are in series and Vcoil=N*Vloop
b. The loops are in parallel and Vcoil=N*Vloop
c. The loops are in series and Vloop=N*Vcoil
d. The loops are in parallel and Vloop=N*Vcoil
4. According to Lenz's law, an induced current in the direction depicted in the picture would be created when:
a. An external upward field is created or an external downward field is removed
b. An external upward field is created or an external upward field is removed
c. An external downward field is created or an external downward field is removed
d. An external downward field is created or an external upward field is removed
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