OPEN RESPONSES Q1) A positively charged particle Q1 = 10 uC is held fixed at position (0,1). A positively charged particle Q2 = 12 MC is located at position (4,4) in a cartesian plane. (20 points) 01 X 61 Ton to y ( cm) 5- MULTIPL 4 Q2 3 2 Q1 - 5 O 1-X(cm) a) What is the distance between Q1 and Q2? (The axis on the cartesian plane is in centimeters) b) What is the magnitude of the electrostatic force (Coulomb's force) that acts on the charge Q2 by Q1? Is this force different from the force that acts on Q1 by Q2? (k = 9 x 109 Nm2/C2 ) c) Find the magnitude of the electric field at Q2 location due to the presence of Q1 d) Find the magnitude of the electric field at Q1 location due to the presence of Q2. Q2) A dipole consists of a positive and a negative charge separated by 0.06 m, as shown below (20 points) P1 0.02m 0.04m 0.06m Q1 = 8nc Q2 = -8nc a) Draw electric field lines and equipotential lines for the above dipole b) If Q1 is 8 nC and Q2 is -8 nc, find the potential at the point P1 c) If the dipole was replaced with a 16 n positive charge, find the potential 4cm away from the charge. d) If you bring in a test charge of 2 nC from infinity and place it 4 cm away from the 16 nc charge, find the potential energy of the system brull es