Engineering Materials

Bus bars of rectangular cross section are generally used for carrying _______

What are used for interconnection on printed circuit boards?

What type of copper alloy is used as collectors for electric generators?

What is the electrical resistivity of pure copper in µohm-cm?

What should be the resistivity in µohm-cm of a resistor material?

What is the most widely used dielectric material in the electrical and electronics industry?

What are the natural or synthetic rubberlike materials which have outstanding elastic characteristics?

What are cellular forms of urethanes, polystyrenes, vinyls, polyethylenes, polypropylenes, phenolics, epoxies, and a variety of other plastics?

What is the widely used electrical insulator?

What is the dielectric strength of an unimpregnated cellulose paper or kraft paper?

What is the most widely known carbide?

Class 1 capacitors have dielectric constants are up to ____

What are the typical dielectric constants of class II capacitors?

What are the most widely used general-purpose coatings?

What is widely used in the electronic industry as a structural member, such as tube envelopes, hermetic seals to metals or ceramics, protective caring on hybrid and integrated circuits, etc?

What refers to glasses which are devitrified about \( 100^\circ C \) below their softening point to form a very fine network of crystalline phase?

The percentage change in magnetic properties of materials resulting from temperature aging is called the _______

The change in electrical resistance due to the application of magnetic field is called ________

Which material is used for dc application such as electromagnetic cores and relays?

Which of the ff is known as "electrical steel"?