An equation sheet is stapled to the back of this exam; you may remove it careful
ID: 1549997 • Letter: A
Question
An equation sheet is stapled to the back of this exam; you may remove it carefully. Scratch paper is available if you it. need Exam 2 Chapters 24 27 Be honest! No smartphones no players, no cheating! Read the problems thoroughly. Identify type of problem. Find Pros and Cons for each choice. Think twice. Do not leave early! Check solutions for mistakes/miscalculations/etc. 1. What is the capacity of a capacitor that holds a charge of 240pC when 120 V are applied? A 500 kF B 2.00 F CO 0.50 F D 28.8 mF 2.00 pF E 2. You have two conducting flat plates of circular shape with a diameter of 5 cm. To built a capacitor with maximized capacitance you have to A place the two plates parallel to each other at a distance that matches the diameter of the plates. B place the two plates parallel to each other at a distance as large as possible. (C place the two plates parallel to each other at a distance as small as possible. D place the two plates parallel to each other, distance is not important.Explanation / Answer
1)
C = Q/V = 240*10^-6/120 = 2uF
2) Option C
Parallel to each other with smallest distance between them as
C = EA/d
Where
E is a constant
A is the area
d is distance between them