UConn ECE physics 1 Final Examination with Answers

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UConn ECE physics 1 Final Examination 2025 with Answers

Question 1 Material that dispersed light into different colors. Response: Prism Correct answer: Prism Score: 1 out of 1 Yes Question 2 Light travels in a straight line. Response: True Correct answer: True Score: 1 out of 1 Yes Question 3 Power lines for applinces in our home is connected in parallel circuit. Response: True Correct answer: True Score: 1 out of 1 Yes Question 4 2/13 The angle of incidence is always equal to the _________. Response: Angle of reflection Correct answer: Angle of reflection Score: 1 out of 1 Yes Question 5 Insulators permit the electrons to transfer from an atom to another. Response: False Correct answer: False Score: 1 out of 1 Yes Question 6 In a series connection, once any bulb gets busted the other bulbs will still gives off light. Response: False Correct answer: False Score: 1 out of 1 Yes Question 7 Who recorded the first observations of static electricity? Response: Thales of Miletus Correct answer: Thales of Miletus Score: 1 out of 1 Yes Question 8 The kind of material that allows some light to pass. Response: Translucent Correct answer: Translucent Score: 1 out of 1 Yes Question 9 A nerve fiber may be approximated as a cylinder with a diameter of 1x10-5 m and a length of 2.0x10-1 m. Find the resistance of this nerve fiber if its resistivity is 2.5 Ω.m. 3/13 Response: 6.4x109 Ω Correct answer: 6.4x109 Ω Score: 1 out of 1 Yes Question 10 An electric heater draws 3.5 A from a 110 V source. The resistance of the heating element is Response: 31 Ohms Correct answer: 31 Ohms Score: 1 out of 1 Yes Question 11 In series circuit, you need to get the sum of all current running on each load to get the total current. Response: False Correct answer: False Score: 1 out of 1 Yes Question 12 In a parallel connection, if one bulb gets busted the other bulbs will still gives off light. Response: True Correct answer: True Score: 1 out of 1 Yes Question 13 Sometimes, the moon is transparent because it does not bounced off light but instead allows light to pass through. Response: True Correct answer: False Score: 0 out of 1 No Question 14 Which is not a characteristics of light? Response: Follows a curved path 4/13 Correct answer: Follows a curved path Score: 1 out of 1 Yes Question 15 What method of charging is being shown in the picture? Response: charging by conduction Correct answer: charging by conduction Score: 1 out of 1 Yes Question 16 Approximately how many milliamperes of current flow through a circuit with a 40 V source and 6.8 k of resistance? Response: 5.9 mA Correct answer: 5.9 mA Score: 1 out of 1 Yes Question 17 In a series connection, once any bulb gets busted the other bulbs will not gives off light. Response: True Correct answer: True Score: 1 out of 1 Yes Question 18 Solve for the electrical force exerted on each other by two ballons having a charge of -2.9×10-8C and +3.5×10-8C when held 0.65m away from each other

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