Posted by Cal on Friday, January 29, 2010 at 8:19am.
Please show some work of your own. E-Field = -(Voltage change)/(separation)
when the separation is measured perpendicular to equipotential surfaces.
In your case, V changes by 70 V in 2.0 meters.
In this case, the field in in the -x direction
exactly what drwls said.
Electric field =
-(change in charge)/(change in position)
So in this case in particular, you have:
- (190V-120V)/(5.00m-3.00m)
= - (70V)/(2.00m)
= -35V/m or -35 N/C
*V/m = N/C*
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