1. Which of the following statements for electric field lines are true? (Give ALL correct answers, i.e., B, AC, BCD…) A) E-field lines point inward toward negative charges. B) E-field lines may cross. C) E-field lines do not begin or end in a charge-free region (except at infinity). D) Where the E-field lines are dense the E-field must be weak. E) E-field lines make circles around positive charges. F) A point charge q, released from rest will initially move along an E-field line. G) E-field lines point outward from positive charges. 2. Consider two uniformly charged parallel plates as shown above. The magnitudes of the charges are equal. (For each statement select T True, F False). A) If the plates are oppositely charged, there is no electric field at c. B) If both plates are negatively charged, the electric field at a points towards the top of the page. C) If both plates are positively charged, there is no electric field at b. 3. As shown in the figure above, a ball of mass 1.050 g and positive charge q =38.1microC is suspended on a string of negligible mass in a uniform electric field. We observe that the ball hangs at an angle of theta=15.0° from the vertical. What is the magnitude of the electric field?

## 1. Which of the following statements for electric field lines are true? (Give ALL correct answers, i.e., B, AC, BCD…) A) E-field lines point inward toward negative charges. B) E-field lines may cross. C) E-field lines do not begin or end in a charge-free region (except at infinity). D) Where the E-field lines are dense the E-field must be weak. E) E-field lines make circles around positive charges. F) A point charge q, released from rest will initially move along an E-field line. G) E-field lines point outward from positive charges. 2. Consider two uniformly charged parallel plates as shown above. The magnitudes of the charges are equal. (For each statement select T True, F False). A) If the plates are oppositely charged, there is no electric field at c. B) If both plates are negatively charged, the electric field at a points towards the top of the page. C) If both plates are positively charged, there is no electric field at b. 3. As shown in the figure above, a ball of mass 1.050 g and positive charge q =38.1microC is suspended on a string of negligible mass in a uniform electric field. We observe that the ball hangs at an angle of theta=15.0° from the vertical. What is the magnitude of the electric field?

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History 108 Research Paper Assignment In order to fulfill the requirements for the course students will research and write on research paper Option 1: Research Paper You will write a 8-10 page research paper on a topic of your choosing based on the materials covered in class. The topic is of your choosing but must be approved by me in advance. The paper must be double spaced, Times New Roman with 12 Font, and have a proper introduction and conclusion. The paper must also incorporate at least 5 sources of academic quality, “Wikipedia does not count.” Sources include primary sources or books and articles, newspapers, video materials, or audio broadcasts etc. If you have a question, check with me. The paper will be due on November 23, 2015. The Paper will count for 20% of the final grade. The heading should be as follows in the upper left hand corner. Name Course Number, Title, and Section Number Professors Name Date Followed by the Title of the Paper Centered

## History 108 Research Paper Assignment In order to fulfill the requirements for the course students will research and write on research paper Option 1: Research Paper You will write a 8-10 page research paper on a topic of your choosing based on the materials covered in class. The topic is of your choosing but must be approved by me in advance. The paper must be double spaced, Times New Roman with 12 Font, and have a proper introduction and conclusion. The paper must also incorporate at least 5 sources of academic quality, “Wikipedia does not count.” Sources include primary sources or books and articles, newspapers, video materials, or audio broadcasts etc. If you have a question, check with me. The paper will be due on November 23, 2015. The Paper will count for 20% of the final grade. The heading should be as follows in the upper left hand corner. Name Course Number, Title, and Section Number Professors Name Date Followed by the Title of the Paper Centered

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