A graph of the electric field between two capacitor plates as a function of distance from the left plate is shown below. The distance between the plates is d, the direction of the field is to the right, and a battery is connected to the plates. 1. Which plate carries a positive charge? 2. How many slabs of material have been inserted between the plates? What is the thickness of the material in terms of d? 3. What can you say about the slab(s) inserted?
A graph of the electric field between two capacitor plates as a function of distance from the left plate is shown below. The distance between the plates is d, the direction of the field is to the right, and a battery is connected to the plates.
1. Which plate carries a positive charge?
2. How many slabs of material have been inserted between the plates? What is the thickness of the material in terms of d?
3. What can you say about the slab(s) inserted?
4. Sketch a graph of the electric field between the plates when the slabs between the plates are removed and the battery remains connected.
Useful information:
C=QV=κC0
Cplates=ϵ0Ad
Cspheres=4πϵ0R1R2R2−R1
Ccylinder=2πϵ0lln(R2/R1)
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