The lines show the equipotential contours in the plane of three point charges, Q

Question

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 The letters are on the equipotential contours. Charge Q3 has the largest magnitude of all Charge Q2 is the largest negative charge. The electric field at k is zero. ! Q1 is a negative charge The force on a proton at g points to the bottom of the page. The electric field at i is stronger than at J. 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 Incorrect. Tries 4/15 Previous Tries Part B Calculate the work required to move a charge of-0.71x10 4.26x10-9 2C from i to b. You are correct. Your receipt no. is 161-1410 Part C Previous Tres Calculate the size of the electric field at k The voltage decrease divided by the distance along which the voltage decreases the most. Submit Answer You have entered that answer before Incorrect. Tries 8/15 Previous Tries Part D Calculate the size of the force on a charge of 6.40×10-19 C at g.

Explanation / Answer

A)True

since magnitude of potential is high for it even at distant points

B)False

Q1's equipotential line has greater radius

C)False

The field is non zero there.

D)True

It has negative potential around it

E)False

force will be towards the top, since it will be repelled.

F)True

because i is close to charges than j.

C)The field will be:

E = (V2 - V1)/d

D)F = q E

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