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  3. 1. an electric field (in v/m) varies with postion

1. An electric field (in v/m) varies with postion along the y axis according to E...

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Physics

1. An electric field (in v/m) varies with postion along the yaxis according to E = 1/y. Find the electric potential differenceVAB if A is a point on the y axis at y = 5 m and B is apoint on the y axis at y = 7 ?

  1. VAB = 0.28 volts
  2. VAB = 0.34 volts
  3. VAB = 0.49 volts
  4. VAB = 0.82 volts

2. How does the electric potential at a point x, a finitedistance away from a large positive charge, compare to a point x/2from the charge?

  1. The potential is half as big
  2. The potential is twice as big
  3. It depends upon the amount of charge
  4. It depends upon the magnitude of x

3.

2. Which of the following doesn't depend upon the charge thatmoves from one point in an electric field to another?

  1. The change in electric potential energy
  2. The work done by the E-field
  3. The change in electric potential
  4. The change in kinetic energy

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