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所在平台: Udemy |
课程主页: https://www.udemy.com/course/physicsninja_dccircuits/
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**课程名称：**Physics 100: Mastering Ohm's Law and DC Circuits **课程概述：** 本课程是关于欧姆定律和直流（DC）电路的全面学习。直流电路是指电路元件中电流方向不随时间变化的电路。课程内容涵盖： 1. **电流和电荷运动：** 定义了电流和电流密度，讲解了漂移速度和密度数。 2. **电阻和欧姆定律：** 回顾了欧姆定律，区分了电阻和电阻率，解释了电阻器色码，并探讨了与电场的关系。 3. **电能：** 回顾了功率，介绍了电势能损失率和电阻器中耗散功率率，以及电动势（EMF）和电池的内阻与最大功率传输。 4. **电阻器组合：** 讲解了如何简化电路，计算等效电阻，并区分了串联和并联电阻。 5. **基尔霍夫定律应用：** 提供了单回路和多回路电路的解题策略，教授如何计算电阻上的电势差以及电路中任意两点间的电势差，并介绍了电流表和电压表等测量仪器。 6. **RC电路：** 学习分析RC电路在短时和长时极限下的行为，包括电容器的充电和放电过程，RC时间常数，以及电容器充放电过程中的能量守恒。 **教学形式：** 课程形式为讲座和辅导相结合，包含大量的代数和概念性例题，以及超过60道完全解析的电路问题，帮助学生更好地理解材料。 **课程评估：** 课程设有4个练习集： 1. 多项简答题 2. 包含电阻器和电动势的电路 3. RC电路 4. 概念题 **课程承诺：** 通过观看课程视频和完成练习题，学生将能够熟练分析直流电路。课程提供者Dr. E.（Physics Ninja）承诺，如果在学习过程中遇到任何问题，都可以随时提问，他会及时解答。 **教师：** Dr. E.（Physics Ninja），资深物理和数学教师。
This is a comprehensive course on Ohm's law and Direct-Current (DC) circuits, which are circuits where the direction of the current in a circuit element does not very with time. The topics in covered in this class are: 1. Current and the Motion of Charges Definition of electric current and current densityFinding the drift velocity and density number 2. Resistance and Ohm's Law Review of Ohm's lawUnderstanding the difference between Resistance and ResistivityUnderstand the Color Code for Resistors Connection to the Electric Field 3. Energy in Electric Circuits Review of Power Rate of Potential Energy Loss Rate of Power Dissipated in a ResistorEMF's and BatteriesInternal Resistance and Maximum Power Delivered 4. Combinations of Resistors Simplifying Electric Circuits Equivalent ResistorsResistors in Series vs Parallel and how to identify the different combinations 5. Applying Kirchhoff's Rules to Circuits Problem solving strategies for single loop circuitsProblem solving strategies for multi-loop circuitsFinding the potential across resistors and between any two points in a circuitUnderstand measuring devices such as ammeters and voltmeters. 6. RC Circuits Learn how to analyze RC circuits in the short and long time limitsCharging vs discharging a CapacitorUnderstand RC time constantUnderstand energy conservation during charging and discharging a capacitor. The class is a combination of lectures and tutorial. I've put together a series of example problems, algebraic and conceptual, to help you better understand the material. The are over 60 fully solved circuit problems in this class. There are 4 problem set in the course: 1) Multiple Short Questions 2) Circuits with Resistors and EMF's 3) RC Circuits 4) Conceptual Problems If you watch the lessons, work on the problems, i'm certain you'll become very proficient at analyzing DC circuits. If at any point during any of my classes you didn't understand something, just message me and i'll make it right. Physics Ninja always has your back! Happy Learning, Dr. E. Physics Ninja and Expert Physics and Math Teacher
