The dipole is on the y axis and the charges are equidistant from the origin and the dipole moment is parallel to the positive y-axis. The charges are 103nC and their distance is 109nm. What is the dipole moment (fCm)?
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The dipole is on the y axis and the charges are equidistant from the origin and the dipole moment is parallel to the positive y-axis. The charges are 103nC and their distance is 109nm. What is the dipole moment (fCm)?
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- An electric dipole consisting of charges of magnitude 4.50 nC separated by 6.90 μm is in an electric field of strength 1150 N/C. What are (a) the magnitude of the electric dipole moment and (b) the difference between the potential energies for dipole orientations parallel and antiparallel to E→?Identical 42 μC charges are fixed on an x axis at x = ±3.4 m. A particle of charge q = –20 μC is then released from rest at a point on the positive part of the y axis. Due to the symmetry of the situation, the particle moves along the y axis and has kinetic energy 1.2 J as it passes through the point x = 0, y = 4.5 m. (a) What is the kinetic energy of the particle as it passes through the origin? (b) At what negative value of y will the particle momentarily stop?d- d- + + P +9 -9-9 +9 -p +p Electric quadrupole. The figure shows an electric quadrupole. It consists of two dipoles with dipole moments that are equal in magnitude but opposite in direction. What is the value of E on the axis of the quadrupole for a point P a distance z from its center (assume z >> d)? Take Q = 2qd² (which is known as the quadrupole moment of the charge distribution.) NOTE: Express your answer in terms of Q and z, using ε0 when needed. E =
- The electric dipole in the figure consists of two charges, +Q and -Q, that are a distance, d, apart, where Q = 55.4 nC and d = 56.3 cm. Point A, which lies along the vertical (dotted) line midway between the two dipole charges, is an unknown distance, r, from the +Q charge. SYMBOLIC INPUT. Use the variables from the problem: Q, d, r, and Coulomb's constant, k, as needed. Electric Potential (1 of 2) The electric potential at point A will be ---Select--- The electric potential at point B will be ---Select--- This tells you that the electric field is ---Select--- the middle line. -. A BProblem 2. The electric force due to a uniform external electric field causes a torque of magnitude 10.0x10-⁹ N'm on an electric dipole oriented at 30° from the direction of the external field. The dipole moment of the dipole is 8.0 x 10-¹2 C.m. (a) What is the magnitude of the external electric field? (b) If the two particles that makeup the dipole are 2.5 mm apart, what is the magnitude of the charge on each particle? -9 Pe com +qi EA solid core carrying excess charge, Q = 47.6 μC, is located at the center of concentric spherical shells. The two spheres are joined by a hollow plastic tube that starts at the radius of the small sphere, r = 13.5 cm, and ends at the radius of the large one, R = 29.7 cm. When a charge, q = 7.8 μC, is placed at the inner end of the tube and released from rest, it accelerates straight through the tube and out the other end as shown. AUE= (a) How much did the electric potential energy change as the particle moved from one end of the tube to the other? Write your answer symbolically, in terms of Q, q, r, R and constants (as needed), then calculate its numeric value. kao ( + - 1/2 ) R = 13.5 J R x J (b) How much electric potential energy will be left when the little charge is 56.7 cm from the core? UE = 5.89 O
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