The resistance of a wire at 0° Celsius is measured to be 172. If the temperature increased to 27° Celsius, determine the change of resistance for the wire. Assuming the use of copper wire (a0 = 0.004041). Change of resistance for the wire=

The resistance of a wire at 0° Celsius is measured to be 172. If the temperature increased to 27° Celsius, determine the change of resistance for the wire. Assuming the use of copper wire (a0 = 0.004041). Change of resistance for the wire=

EBK ELECTRICAL WIRING RESIDENTIAL

19th Edition

ISBN:9781337516549

Author:Simmons

Publisher:Simmons

Chapter6: Ground-fault Circuit Interrupters, Arc-fault Circuit Interrupters, Surge Protective Devices, Immersion Detection Circuit Interrupters, And Appliance Leakage Current Interrupters

Section: Chapter Questions

Problem 26R

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Photoelectric

The photoelectric effect occurs when light (or similar incident radiation, including X-rays) falls on material together with a metal plate and causes it to emit electrons. The discovery of the photoelectric effect led to important new theories (and to a Nobel Prize for Albert Einstein). Photoelectric cells, or photocells, are utilized in burglar-alarm light detectors and garage-door openers (each employs a through-beam of light this is broken when something movements throughout it), and also to play soundtracks on film movies (in which a light beam shines through the soundtrack encoded at the film and is "read" with the aid of the photocells).

Question

The resistance of a wire at 0° Celsius is
measured to be 17N. If the temperature
increased to 27° Celsius, determine the change
of resistance for the wire. Assuming the use of
copper wire (aO = 0.004041).
Change of resistance for the wire=

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