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Introductory Physics Homework Help
Stopping Potential and kinetic potential
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[QUOTE="kougou, post: 4504171, member: 358713"] [b][URGENT! Stopping Potential~~~~~~~#######~~~~~~~~~~~~~~~~[/b] [h2]Homework Statement [/h2] max Kinetic_energy= e*Vs=hf-work_function Vs is the stopping potential [b] The attempt at a solution[/b] I am wondering, does this stopping potential refers the voltage difference of V_Emitter (where the line shines on) - V_collector(where the electron travels to), and thus, the stopping potential is usually positive? Also, for that equation max kinetic_energy= e*Vs, 'e' is just the charge= +ve 1.602*10^-19? so that the max kinetic energy in this case, (+5 V)*(+ 1.602*10^-19)= +ve number? [/QUOTE]
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Stopping Potential and kinetic potential
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