M7aywinaboo1oli M7aywinaboo1oli

24-11-2016
Physics

contestada

Two equipotential surfaces surround a +2.90 x 10-8-C point charge. How far is the 220-V surface from the 85.0-V surface?

Respuesta :

syed514 syed514

28-11-2016

The potential difference isV=220−85=135.
Now the potential V at distance d from a point charge Q isV=Q/4πϵ0d
If you solve this for d and plug in the potential difference you will get the answer.

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