In a photoelectric experiment, if the stopping potential is increased, what happ

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Question: In a photoelectric experiment, if the stopping potential is increased, what happens to the current?

Options:

Correct Answer: It decreases

Solution:

Increasing the stopping potential reduces the number of electrons reaching the anode, thus decreasing the current.

In a photoelectric experiment, if the stopping potential is increased, what happens to the current?

In a photoelectric experiment, if the stopping potential is increased, what happens to the current?

Correct Answer: Current decreases

Step 1: Understand what stopping potential means. It is the voltage needed to stop the flow of electrons from the photoelectric effect.
Step 2: Know that in a photoelectric experiment, light hits a material and causes electrons to be emitted.
Step 3: Realize that these emitted electrons move towards the anode (positive side) to create current.
Step 4: When the stopping potential is increased, it means we are applying a stronger voltage to stop the electrons.
Step 5: As the stopping potential increases, more electrons are stopped from reaching the anode.
Step 6: Since fewer electrons reach the anode, the current (which is the flow of electrons) decreases.

Photoelectric Effect – The phenomenon where electrons are emitted from a material when it is exposed to light of sufficient energy.
Stopping Potential – The minimum potential difference needed to stop the flow of photoelectrons, which relates to their kinetic energy.
Current in Photoelectric Experiment – The flow of electric charge, which is affected by the number of electrons reaching the anode.