PHY101_Lesson_11_Problem_Set_5_R (1)

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Name Zachery Allen Section ______ Date 7/16/23 Lesson 11 Problem Set 5 Magnetism and Induction Directions Several of the following problems are missing some of the given variable information (labeled in red with “ ABI ” or assigned by instructor). Your instructor will provide the values through the Message Center, in the “From Your Instructor” section of the lesson, or in an Announcement on the course Home Page. Use the values provided by your instructor to answer each question. Show all work with units in your work. Use appropriate labels and units. Be sure to type all work, diagrams, explanations, and final answers as it is too difficult to read hand-written work after going through the various systems to get to your instructor. Also, this is good practice as you will have to type the midterm and final exam free response items as well. 1. A particle with a charge of ABI μC is moving at ABI m/s perpendicularly through a magnetic field with a strength of ABI T . What is the magnitude of the force on the particle? (10 points) F =(3×10 −6C)⋅(2,500,000m/s)⋅(0.03T) F=7.5N The magnitude of the force on the particle is 7.5 Newtons (N) 2. This diagram shows a magnet moving into a coil of wire. This movement causes a reading on the voltmeter. a. Explain this situation using terms discussed during this lesson. (5 points) The magnet is charging the electric field around the coil causing voltmeter to show charge as the coil charges from the polarization of the magnetic field.

b. Explain what would happen to the reading on the voltmeter if the number of turns in the coil of wire were increased. (5 points) The voltage would go up because more charge would be able to be collected at one given time. 3. This diagram shows the construction of a simple transformer. Explain why iron is a suitable material for the core of a transformer. (10 points) Iron is a suitable material for the core of a transformer due to its unique magnetic properties. Iron has a high magnetic permeability, which means it can easily conduct magnetic flux. When the changing magnetic field from the primary coil passes through the iron core, most of the magnetic lines of force are concentrated in the core. This high permeability allows for efficient magnetic coupling between the primary and secondary coils, resulting in effective energy transfer. 4. This diagram shows a transformer with a 50 Hz (AC) supply connected to 10 turns of insulated wire wrapped around one side of the iron core. A voltmeter is connected to 5 turns wrapped around the other side of the iron core. Explain what type of transformer this is and how you know using terms discussed in the lesson. (10 points) Based on the information provided in the diagram, we can determine that this is a step-down transformer. A transformer is classified as a step-up or step-down transformer based on the ratio of the number of turns in the primary coil

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