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Physics module 13 · Put your knowledge to work

Circuits Applications

Solve current, resistance, resistivity, network, and power problems.

8 problem sets · Learn at your pace · Some resources require membership

From understanding to problem solving.

Your next step

Choose a problem set

Start with a familiar topic, then work towards more demanding problems.

8 of 8 sets

  1. 01Problem studio

    Circuit Symbols and Diagram Problems

    Loops, meter placement, and predicting readings from correct and faulty wiring.

    Open practice
  2. 02Problem studio

    Electric Current and Charge Problems

    Charge, time, electron counting, battery ratings, and drift speed.

    Open practice
  3. 03Problem studio

    Voltage and Potential Difference Problems

    Energy per coulomb, series energy shares, and stored battery energy.

    Open practice
  4. 04Problem studio

    Resistance and Ohm's Law Problems

    The V/I ratio, ohmic predictions, I–V gradients, and uncertainty.

    Open practice
  5. 05Problem studio

    Resistivity Problems

    Material versus shape, wire design, stretching, and measuring ρ.

    Open practice
  6. 06Problem studio

    Series and Parallel Circuit Problems

    Combination rules, current splitting, dividers, and three-branch networks.

    Open practice
  7. 07Problem studio

    Electric Power Problems

    P = IV and its resistor forms, ratings, kWh costs, and transmission losses.

    Open practice
  8. 08Problem studio

    Current Calculus Problems

    Derivatives of Q(t), areas under I–t and P–t graphs, and average versus instantaneous current.

    Open practice
Review the foundations 4 related lessons

Extra challenging questions

Take the ideas further with course-specific extension questions, supplied-data graphs and worked solutions.