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Calculate the saturation thermionic current if 120 W is applied to a thoriated-tungsten filament of surface area 10 cm. Assume that the surface radiates

Calculate the saturation thermionic current if 120 W is applied to a thoriated-tungsten filament of surface area 10 cm. Assume that the surface radiates like a blackbody. The required constants are 2 A=3x 10Am 2-K2, q=2-6 eV, k = 8.62 x 105 eV K- and o= 6 x 10 W m 2K4.

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