Quiz 4, 17Jul01

1
Quiz 4, 17-Jul-01 Please fold and put name on
outside

• What is the electric field strength (magnitude)
  between two points separated by 3cm if the
  potential difference between these points was
  measured to be 10,000V ??
• 3.33x105V/m

500V
r
3. Find the potential in volts at point p in the
below configuration. (V?0) q1 6 x
10-9C, q2 -2 x 10-9C q3 5 x 10-9C, k
8.99 x 109
Conducting solid sphere
2) The surface of a solid conducting sphere with
radius r is measured to have a potential of
500V (V?0). What is the voltage at the center
?? 500V
24.87V