The lines show the equipotential contours in the plane of three point charges, Q1, Q2, and Q3. The values of the potentials are in kV as indicated for the +5, 0, and -5 kV contours. The positions of the charges are indicated by the dots. a Q1 . A Volts cm The letters are on the equipotential contours. True Charge Q3 has the largest magnitude of all. False Q1 is a negative charge. False The electric field at k is zero. True The force on a proton at g points to the bottom of the page. True The electric field at i is stronger than at j. False Charge Q2 is the largest negative charge. The potential near a point charge decreases as 1/distance from the charge. The distance at which the potentials have a given value tells the size and sign of the charges involved. Submit Answer You have entered that answer before Incorrect. Tries 5/15 Previous Tries Calculate the work required to move a charge of -0.35x10-12C from i to b. Submit Answer Tries 0/15 Calculate the size of the electric field at g . Submit Answer Tries 0/15 Calculate the size of the force on a charge of 3.20x10-19 C at k. Submit Answer Tries 0/15 Calculate the size of Q3. The magnitudes of the three charges are in the exact ratios of 1 to 2 to 3