Unit 11 crossword

4. type of current that always flows in the same direction around a circuit
9. if a coil rotates at a constant speed in a uniform magnetic field, it produces an emf that varies ____
11. a term to describe when a conductor is wound into a coil
12. kind of change in which a rate of decrease in a quantity is proportional to the amount remaining
13. the unit of magnetic flux
15. word to describe a current that has a changing direction of current

1. the name of the process of converting ac to dc
2. the direction of an induced emf is such that it will oppose the change that produced it
3. used to change the voltage of a current
5. in order to induce an emf in a circuit, a ____ magnetic field must pass through the circuit
6. semi-conducting component that allows current to pass through it in only one direction
7. the product of the area and the component of the magnetic field strength perpendicular to that area
8. transmission lines are usually connected together in something called a _______
10. the ability of an object to 'store' electric charge
14. the first person to demonstrate electromagnetic induction between coils