Online CEGEP Electricity & Magnetism Tutoring

Current and former course codes

This table matches current and former codes by Science program subject. Your institution must confirm any transfer-credit equivalence. The prefix matters: 201-SN1 is probability and statistics, while 203-SN1 is mechanics. Course codes and topics can vary by institution. Check your current course outline.

Check current names and content in the official Dawson mathematics list and Dawson physics list.

Worked example

Use two $6\,\Omega$ resistors and an applied potential difference $V=12\,\mathrm V$. Let $R_s$ and $R_p$ denote the equivalent series and parallel resistances, and $I$ the total current. In series, resistances add: $R_s=6\,\Omega+6\,\Omega=12\,\Omega$. Ohm’s law $I=V/R_s$ gives $I=\frac{12\,\mathrm V}{12\,\Omega}=1\,\mathrm A$, the current through each resistor. In parallel, add reciprocal resistances: $\frac1{R_p}=\frac1{6\,\Omega}+\frac1{6\,\Omega}$, so $R_p=3\,\Omega$. Each branch has the full $12\,\mathrm V$, giving a branch current of $\frac{12\,\mathrm V}{6\,\Omega}=2\,\mathrm A$. Adding the two branch currents gives $I=2\,\mathrm A+2\,\mathrm A=4\,\mathrm A$, also found from $I=V/R_p$. Connections, not the drawing’s shape, determine the model.