30) In a Townsend experiment, If the saturation current is measured as 100 micro-Amper between two parallel-plate electrodes ( 100 cm x 100 cm x for each), calculate the work function of the cathode. The temperature of the test medium is 1150 Kelvin. www www wwwwww Boltzmann's constant = 1.38064852 x 10-23 m2 kg/s2 K -19 1 ev = 1.6 x 109 Joule а. 4.3 еу b. 4.6 ev ww с. 4.8 еу d. 3.7 ev e. 3.2 ev

30) In a Townsend experiment, If the saturation current is measured as 100 micro-Amper between two parallel-plate electrodes ( 100 cm x 100 cm x for each), calculate the work function of the cathode. The temperature of the test medium is 1150 Kelvin. www www wwwwww Boltzmann's constant = 1.38064852 x 10-23 m2 kg/s2 K -19 1 ev = 1.6 x 109 Joule а. 4.3 еу b. 4.6 ev ww с. 4.8 еу d. 3.7 ev e. 3.2 ev

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter34: Frontiers Of Physics

Section: Chapter Questions

Problem 31PE: A section of superconducting wire carries a current of 100 A and requires 1.00 L of liquid nitrogen...

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