Electromagnetic spectrum
Across
- 4. typically consists of an insulated wire wound into a coil.
- 6. type of magnetism in solids such as manganese oxide (MnO) in which adjacent ions that behave as tiny magnets
- 8. is the rate at which current changes direction per second
- 11. is any source of potential damage
- 14. His main discoveries include the principles underlying electromagnetic induction, diamagnetism and electrolysis.
- 17. has more primary windings than the secondary side.
- 19. means caused by or related to heat or temperature.
- 20. defined as the opposition to the flow of current from a circuit element
- 21. as the first Secretary of the Smithsonian Institution
- 22. wavelength in the range 0.001–0.3 m
- 23. form of magnetism whereby some materials are weakly attracted by an externally applied magnetic field
- 26. flow of electrical charge carriers, usually electrons or electron-deficient atoms.
- 27. roughly circular line, route, or movement that starts and finishes at the same place.
- 30. quantum mechanical effect that occurs in all materials
- 31. the production of an electrical
- 32. branch of science concerned with the nature and properties of matter and energy.
- 35. makes things visible.
- 37. is checking for fractures
- 38. high temperature
- 39. a stable subatomic particle with a charge of negative electricity
Down
- 1. ratio of the amount of electric charge stored on a conductor to a difference in electric potential
- 2. relating to sight
- 3. wavelength from about 800 nm to 1 mm
- 5. means to supply with energy or force.
- 7. appear to radiate from a bright object.
- 9. violet end of the visible spectrum
- 10. a disturbance that moves energy
- 12. passive electrical device that transfers electrical energy
- 13. interrelation of electric currents
- 15. sound that is deep and rich.
- 16. the SI base unit of electrical current
- 18. measure of the overall opposition of a circuit to current
- 24. the force that attracts a body toward the center of the earth
- 25. the output (secondary) voltage is greater than its input (primary) voltage
- 28. general laws from particular instances
- 29. states that the current induced in a circuit due to a change in a magnetic field
- 33. type of transformer that is used to reduce or multiply an alternating current
- 34. an English scientist, developed a scientific theory to explain electromagnetic waves. An electromagnetic wave exists when the changing magnetic field causes a changing electric field
- 36. a device that converts motive power into electrical power