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kougou

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**[URGENT! Stopping Potential~~~~~~~#######~~~~~~~~~~~~~~~~**

## Homework Statement

max Kinetic_energy= e*Vs=hf-work_function

Vs is the stopping potential

**The attempt at a solution**

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?

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