Chapter 26, Problem 75EAP

In Problems 75 through 77 you are given the equation(s) used to solve

a problem. For each of these, you are to

a. Write a realistic problem for which this is the correct equation(s).

b. Finish the solution of the problem.

75. $2az\text{V}/\text{m=}-\frac{dV}{dz}$ , where a is a constant with units of V/m2

76. $\text{4}00\text{nC}=(\text{1}00\text{V)}C$

$C=\frac{\left(8.85\times {10}^{-12}{\text{C/Nm}}^{\text{2}}\right)\left(\text{0}\text{.10m×0}\text{.10m}\right)}{d}$

77. ${\left(\frac{1}{3\mu \text{F}}+\frac{1}{6\mu \text{F}}\right)}^{-1}+C=4\mu \text{F}$