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Q.52

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Physics for Scientists and Engineers: A Strategic Approach with Modern Physics
Found in: Page 656

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Short Answer

An electron is launched at a angle and a speed of from the positive plate of the parallel-plate capacitor shown in FIGURE P. The electron lands away.

a. What is the electric field strength inside the capacitor?

b. What is the smallest possible spacing between the plates?

a. The electric field strength inside the capacitor is

b. The smallest possible spacing between the plates is

See the step by step solution

Step by Step Solution

Step 1: Velocity (part a)

The pace as in downward motion .

And there is no stress with in downward motion

so,

.

At its highest point (vertical direction).

Step 2: Force (part b)

Force is,

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