A 22-W platinum wire at 20°C with a temperature coefficient of resistivity of 3.9 × 10^-3 (°C)-1 will have what resistance at 100°C?
a. 29 W
c. 26 W
b. 20 W
d. 14 W
A
Physics & Space Science
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Polyacetylene conducts electricity if it has bonding defects called _________.
Fill in the blank(s) with the appropriate word(s).
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The ________ of a star is a measure of the total energy radiated by the star in one second
a. color b. apparent visual magnitude c. luminosity class d. spectral type e. luminosity
Physics & Space Science
Select the statement which is incorrect
1.Laser light is coherent. 2.Laser light is monochromatic. 3.Laser light can be sharply collimated. 4.Laser light always produces a high and potentially dangerous temperature.
Physics & Space Science
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Indicate whether the statement is true or false.
Physics & Space Science