Question: 1) To get an idea how big a farad is, suppose you want to make a 1.0-F air-filled parallel-plate capacitor for a circuit you are

1) To get an idea how big a farad is, suppose you want to make a 1.0-F air-filled parallel-plate capacitor for a circuit you are building. To make it a reasonable size, suppose you limit the plate area to 1.7 cm2.

What would the gap have to be between the plates?

2) An electron starting from rest acquires 3.8 keVkeV of KE in moving from point AA to point BB.

a. How much KE would a proton acquire, starting from rest at BB and moving to point AA?

b. Determine the ratio of their speeds at the end of their respective trajectories.

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