Incorrect, tries 2/20.
10) Suppose that he radius $R$ of the disk is taken to infinity (in the sense of taking the limit). At the same time, the total
charge $Q$ is also taken to infinity so that the surface charge density is kept constant at 2 C/m². What is the strength of the
electric field at any target position above the charged, infinite disk?
Answer:
??
R
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11) The figure above depicts a thin, insulating string (in solid blue) curved into a circular arc of radius $R = 6$ cm, spanning
an angular width of $?? = 2.513$ radians starting at an angle $? = 0.314$ rad above the positive $x$-axis. The string carries a
total charge of $Q = 6$ µC. The red point at the center is the $z$-axis pointing out of the screen. The $y$-axis is along the
vertical direction and the $x$-axis is along the horizontal direction. What are the components of the total electric field at the
point (0, 0, 5 cm)? [Enter $E_z$ in the first box, $E_y$ in the second and $E_x$ in the third.]
Answer 1 of 3:
Answer 2 of 3:
Answer 3 of 3:
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