PHY13 IS 18, Homework #3: Potential Field The lines show the equipotential conto

Question

PHY13 IS 18, Homework #3: Potential Field The lines show the equipotential contours in the plane of three point charges, Qi: Q, 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. Q1 92 em The letters are on the equipotential contours. False: The electric field at k is zero. False: Charge Q2 is the negative charge with largest magnitude True: The electric field at i is stronger than at j.. False: The force on a proton at g points to the bottom of the page. True: Charge Qs has the largest magnitude of all True:Q is a negative charge You are correct. Computer's answer now shown above. Your receipt no. is 153-3595 Previous Tries Calculate the magnitude of the work required to move a charge of-0.35x101 C from i to b. The equipotential lines shown are separated by 1 S(kV_u. Work to move a charge is the increase in potential energy of the charge. The potential energy is the potential times the charge Submit Answer Incorrect. Tries 2/20Previous Tries positive: The sign of the work above is: You are correct. Computer's answer now shown above.p Previous Tries

Explanation / Answer

magnitude of work done in moving a charge of Q from location A to location B is given by

W=|Q*(Va-Vb)|

potential at i is 3 volts and potential at b is -3 volts.

so magnitude of work done=0.35*10^(-12)*(3-(-3))=2.1*10^(-12) J

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