A. nickel copper
B. nichrome
C. silicon carbide
D. silver
A. series
B. parallel
C. series-parallel connections
D. star-delta connections
E. all of the above ways
A. Insulating materials
B. Conducting materials which are magnetic
C. Conducting materials which are non-magnetic
D. Conducting materials which may or may not be magnetic
A. Induction heating
B. Dielectric heating
C. Electric resistance heating
D. All of the above
A. inside boiler furnaces
B. during melting of ice
C. through the surface of the insulted pipe carrying steam
D. from refrigerator coils to freezer of a refrigerator
A. Optical pyrometer
B. Mercury thermometer
C. Alcohol thermometer
D. Any of the above
A. Arc heating
B. Dielectric heating
C. Induction heating
D. Resistance heating