Question

What is stopping potential

Answer 1

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STOPPING POTENTIAL :

✏The stopping potential is defined as the potentialnecessary to stop any electron (or, in other words, to stopeven the electron with the most kinetic energy) from reaching the other side...

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Answer 2

Answer:

Stopping potential is that the value of the negative potential given to the collecting electrode A which is just sufficient to stop the most energetic photoelectrons emitted and make the photo current zero.