ELECTRIC POTENTIAL A freak lightning storm came by and charged the roofs so that
ID: 1589093 • Letter: E
Question
ELECTRIC POTENTIAL
A freak lightning storm came by and charged the roofs so that the electric potentials are as in Fig. 2. (Only the top view and a protractor are shown.)
1. [3pt]
The electric field can be calculated if the potential is known at several locations; Find the magnitude of the electric field at location S. For distances, use the meter scale on the picture; measure to an appropriate degree of accuracy.
Answer:
2. [2pt]
Find the direction of the electric field at location Y in Fig. 2. Note that the electric field is always perpendicular to the contour lines. Give the direction as an angle (in degrees, measured anticlockwise from the x-axis).
Answer:
Explanation / Answer
1) electric field= - delta V/delta x = -1volt/m in positive x direction
= 1 volt/m in negative x direction
2) 315o with x-axis....the field direction is ououtward of the circle because potential decreases in the directionn of the field and electric fields are perpendicular to the contour lines
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.