The plates of a parallel-plate capacitor are maintained with a constant voltage by a battery as they are pulled apart. How is the strength of the electric field affected during this process

Respuesta :

Answer: Strength decreases

Explanation:

The electric field is related to the voltage and distance by the formula

Electric field = [tex]\frac{Voltage}{Distance}[/tex]

Now, we are given two conditions, 1st is that the voltage is maintained constant meaning voltage is not increasing or decreasing.

The second condition is the the plates are being pulled apart which means the distance between the plates is increasing.

Now as per the relation Electric field is inversely proportional to the distance, so increasing the distance results in the decrease in strength of electric field.

The electric field strength between the capacitors will decrease when the plates are pulled apart.

The electric field strength between two parallel plates is directly proportional to the voltage and inversely proportional to the distance between the plates.

[tex]E = \frac{V}{d}[/tex]

where;

  • d is the distance between the two plates

The electric field strength is affected by the distance of separation of the two parallel plates.

As the distance between the two plates increases and the voltage is kept constant, the electric field strength between the plates decreases.

Thus, we can conclude that the electric field strength between the capacitors will decrease when the plates are pulled apart.

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