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Q. 2

Physics for Scientists and Engineers: A Strategic Approach with Modern Physics
Found in: Page 709

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Short Answer

The electric field strength is inside a parallel-plate capacitor with a spacing. A proton is released from rest at the positive plate. What is the proton’s speed when it reaches the negative plate?

The proton's final velocity at negative plate is

See the step by step solution

Step by Step Solution

Step :1  Angular momentum

Given information:

Electric field strength is .

Spacing is .


The objective is to find proton's speed reaches the negative plate.

The particle travels along the field, more toward the capacitor's deleterious anode, in a static electric field. At the expenditure of electrostatic field, it gains angular momentum.

The variation in electromotive force can be computed using equation :

Step :2 Explanation

We can compute the proton's mobility when it approaches the negatively pole by transforming the difference in electromotive force energy into kinetic energy.

From energy conversation

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