Answer the following statement(s) true (T) or false (F)
1. Thermopile is the name given to devices that produce a small emf when the junction of two dissimilar metals is being heated.
2. Some materials develop opposite electrical charges on opposite sides when they are compressed (or twisted, bent, or stretched).
3. Electrolysis uses an electrical current to produce desirable chemical changes or variations in the properties of certain substances.
4. Magnetic crystals are used in small earphones, where the crystal magnetizes a diaphragm, causing audible sound waves.
5. Electricity and magnetism are two distinctly different and unrelated phenomena.
1. False
2. True
3. True
4. False
5. False
You might also like to view...
A ____ is a freehand drawing used to describe the shape and size of an object. It is a means of quickly expressing an idea.
A. draft B. sketch C. mockup D. map
If 32 pounds of fertilizer will cover 1,800 square feet of lawn, how many pounds are needed for 21,400 square feet?
What will be an ideal response?
When inspecting a cracked DPF core, there is evidence of scorched fuel in the substrate. What should be done after replacing the DPF?
A. send a fuel sample off for testing B. change the fuel filters C. replace all the injectors D. perform a cylinder balance test
A(n) ____________________ is the location where the movable part of a valve seals off the flow of
gas.
Fill in the blank(s) with the appropriate word(s).