The figure shows the equipotential contours due to three point charges, labelled

Question

The figure shows the equipotential contours due to three point charges, labelled in volts.
Select T-True, F-False for each of the statements below. E.g., if the first is true and the rest false, enter TFFFF.

I) The direction of the electric field at e is along the tangent to the contour.

II) A charge released from rest on one of these contours will not move along the contour.

III) -118.1 J of work is done to move a charge of 1 coulomb from d to c along the contour.

IV) Two of the charges are negative and one is positive.

V) The charge located at (0,0) is greater than the charge located at (-5,5).

VI) The potential at b is greater than the potential at a.

Explanation / Answer

I) The direction of the electric field at e is along the tangent to the contour.TRUE

II) A charge released from rest on one of these contours will not move along the contour.FALSE

III) -118.1 J of work is done to move a charge of 1 coulomb from d to c along the contour.FALSE

IV) Two of the charges are negative and one is positive.FALSE

V) The charge located at (0,0) is greater than the charge located at (-5,5).FALSE

VI) The potential at b is greater than the potential at a. TRUE(because b is posITIVE wrt a, although lesser in magnitude.)

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