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kd2eom

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Everything posted by kd2eom

  1. Never mind, I have figured it out!
  2. Never mind, I have figured it out!
  3. I just watched this APlusPhysics video: https://www.youtube.com/watch?v=1wAwkyzxB0k I have a question for 2. a. Why is voltage across C0 equal to V0? I understand how this be the case if the resistor R1 was not there (since voltages are the same for components connected in parallel); however, since the resistor is connected to the capacitor in series, wouldn't the voltage V0 be split across C0 and R1 (which means C0 would have a voltage less than V0)? Also, for 2. b - I originally thought that I2 would increase, because when the switch is first closed, the capacitor acts like a wire
  4. Hello, This question features a circuit with a resistor, an inductor, and a battery all connected in series. It then shows an increasing concave down graph of something vs. t - the graph started at the origin and had a horizontal asymptote at some positive value of x. The "something" could be: A. The potential difference across the resistor B. The potential difference across the inductor and/or C. The current in the circuit. I had reasoned that it would be all 3. When an inductor is first connected to a battery at time t=0, it doesn't allow electricity to flow, but as
  5. Hi, I'm confused about this question: "A proton is moving to the right at constant speed v and enters a region with uniform magnetic and electric fields. It continues to move in a straight line. The magnetic field is directed toward the top of the page. What is the direction of the electric field?" Using the right hand rule, with fingers pointed to the right and curled fingers up, my thumb points out of the page, leading me to believe that would be the answer. The correct answer is actually that the electric field points into the page. Why is this? Thank you!
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