PHY 221

Circuit Theory 1.

Mount Wachusett Community College · UGRD · Fall 2026

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Terminal characteristics of ideal elements, active and passive. Ohm's law and Kirchhoff's Laws. Equivalent resistance, voltage division, current division. Introduction to network topology, independent variables, mesh and nodal analysis with matrix methods. Definition and consequences of linearity. Superposition theorem. Concept of excitation and response. Passive equivalent circuits; active equivalent circuits. Thevenin's and Norton's theorems. Ideal inductance and capacitance, volt-ampere characteristics, energy relations. First-order transients: initial conditions, natural response, and natural frequencies. Network response to unit step function and unit impulse. Second-order transients: RLC circuits, natural frequencies and the complex-frequency s-plane. Introduction to matrices and their use in circuit analysis. Prerequisites: PHY 121 ; MAT 220 (or corequisite).

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Class #mount_wachusett-0179Fall 2026UGRD4 credits
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