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MCAT Practice Questioms 58. Two equal and opposite charges a certain distance apart are called an electric dipole. A positive test charge ig is placed as shown, equidistant from the two charges. Which diagram below gives the direction of the net force on the test charge? A.← B. C.↑ particle moves and experiences no magnetic force. What can be concluded? A. Either no magnetic field exists or the particle is moving parallel to the field B. No magnetic field exists in that region of space C. The particle is moving at right angles to a magnetic ficld D. The particle is moving parallel to a magnetic field 60. Find the magnitude of the electrostatic force between a +3 C point charge and a -12 C point charge if they are separated by 50 cm, of empty space. (Use Coulornhs constant k 109Nm3/C2) A, 9.2 × 1012 N B. 1.3 x 10 N C. 7.7 × 1012 N D. 4.8 × 1012 N 136 Copyright o 2018 Sterling Test Prep. Any duplication isilleali

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