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Electrical Circuits

DC circuits, AC steady-state, transient response, frequency response, and op-amps. Operationalizes the physical laws from Physics E&M into systematic circuit analysis techniques.

7 modules·56 concepts·36 practice problems·~35 hours

Prerequisites

Exam Relevance

FE Exams3 exams
FE General6% of exam
FE Electrical13% of exam
FE Computer5% of exam
University Exams1 exam
University Circuits I100% of exam

Module Breakdown

1.DC Circuit Fundamentals

17 concepts·19 problems

Apply Ohm's law, Kirchhoff's voltage law, and voltage/current dividers to analyze series and parallel resistive circuits, and calculate power dissipation.

17 concepts covered
Ohms LawCurrentVoltageResistanceElectrical PowerPower DissipationVoltage DividerCurrent DividerSeries ResistanceParallel ResistanceEquivalent ResistanceSeries CircuitVoltage DropKirchhoff Voltage LawKirchhoffs Voltage LawKvlLoop Analysis

2.Circuit Theorems

11 concepts·4 problems

Simplify circuits using superposition and Thevenin equivalents, apply maximum power transfer, and analyze Wheatstone bridge configurations for resistance measurement.

11 concepts covered
SuperpositionThevenin TheoremOpen Circuit VoltageEquivalent CircuitMaximum Power TransferLoad MatchingPower DeliveryWheatstone BridgeBridge CircuitBalanced BridgeResistance Measurement

3.Capacitors & Inductors

7 concepts·6 problems

Understand energy storage in electric and magnetic fields, and calculate the energy stored in capacitors and inductors from voltage and current relationships.

7 concepts covered
CapacitorCapacitor EnergyElectric Field EnergyInductorInductor EnergyMagnetic Field EnergyEnergy Storage

4.First-Order Transient Circuits

7 concepts·9 problems

Analyze RC and RL circuits driven by step inputs, compute time constants, and predict capacitor charging and natural/step response behavior over time.

7 concepts covered
Rc CircuitRl CircuitTime ConstantCapacitor ChargingStep ResponseTransient ResponseCircuit Analysis

5.Second-Order Transient Circuits

4 concepts·1 problems

Characterize RLC circuits by their natural frequency and damping ratio, and distinguish between underdamped, critically damped, and overdamped transient responses.

4 concepts covered
Rlc CircuitDampingNatural FrequencyUnderdamped

6.AC Steady-State Analysis

5 concepts·3 problems

Convert sinusoidal sources to phasors, compute impedance from capacitive and inductive reactance, and solve AC circuits using phasor-domain techniques.

5 concepts covered
Ac ImpedanceCapacitive ReactanceInductive ReactanceReactancePhasor Analysis

7.AC Power

5 concepts·1 problems

Calculate real, reactive, and apparent power in AC circuits, interpret the power factor, and understand its role in efficient power delivery.

5 concepts covered
Ac PowerReal PowerReactive PowerApparent PowerPower Factor

Reference Textbooks

  • Nilsson & Riedel — Electric Circuits
  • Alexander & Sadiku — Fundamentals of Electric Circuits

Ready to practice Circuits?

36 practice problems with step-by-step solutions. Free, no credit card.