Free AP Physics C lesson

Energy & Applications

This AP Physics C: Electricity & Magnetism lesson is designed for AP Physics C self-study. It includes 3 video lessons, 5 practice questions, and an estimated completion time of 20 minutes.

Video lessons

  1. Energy Considerations in RC Circuits

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  2. RC Circuit Applications

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  3. Designing RC Filter Circuits

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Practice covered

  1. When charging a capacitor through a resistor from a battery, the energy supplied by the battery U_b and energy stored in the capacitor U_C are related by:
  2. A 100 μF capacitor is charged to 50 V through a resistor. Calculate the energy dissipated (in joules) as heat in the resistor.
  3. RC circuits are commonly used in:
  4. A low-pass RC filter allows low frequencies to pass and blocks high frequencies. The cutoff frequency f_c is:
  5. Design a low-pass filter with cutoff frequency 1000 Hz using R = 10 kΩ. Calculate the required capacitance (in microfarads). (Use pi approx 3.14)
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