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A uniform electric field of 20 N/C exists in the vertically downward direction. Find the increase in the electric potential as one goes up through a height of 40 cm. |
Answer» `E=-(dv)/(dr) implies dv=-vec(E). Vec(dr)` for `vec(E)=` constant `implies" "DeltaV=- vec(E). Vec(Delta r)` `DeltaV=-20 (-hat(j)). (40xx10^(-2)) hat(j)=8` volts. |
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