Physics - DC Circuits - High School and AP Physics

Explore dc series circuits by using a battery and two resistors to show the current is the same everywhere and voltages sum to zero.

Learn how series circuits work: current is the same through all components, voltages sum to total, ignore wire resistance, apply Ohm's law, and equivalent resistance equals sum of series resistors.

Solve a series circuit using a VIP table to track voltages, currents, and resistances; apply Ohm's law to find currents, drops, and power.

Explore how resistors in series add to form a total resistance, apply Ohm's law, and determine current and voltage in series circuits through worked examples.

Explore series dc circuits by applying Ohm's law to compute current, voltage drops across resistors, and total current using a power supply and voltmeters.

Explore parallel circuits by showing how current splits across multiple paths at junctions, with the same voltage across branches and the concept of equivalent resistance.

Explore quantitative analysis of a parallel circuit: compute equivalent resistance, currents and voltage across each branch, and power, using 6V, 30Ω and 10Ω resistors.

Master parallel dc circuits by applying the rule that all branch voltages remain equal, assess how adding parallel paths lowers equivalent resistance, and analyze bulb behavior when one path fails.

Study parallel circuits by tracking currents at junctions, applying Ohm's law, and finding the parallel equivalent resistance; see how total current shifts with circuit branches and a 110-volt supply.

Explore how bulb brightness follows power, driven by current and voltage in circuits. Compare a single nine-volt, 50-ohm bulb with two identical bulbs in series, noting reduced current and power.

learn how series and parallel bulbs affect current, voltage, and brightness in dc circuits, using 9 volts and 50 ohms, and apply Kirchhoff loop rule to analyze power.

Explore a PhET dc circuit simulation to study parallel bulbs, current, and brightness; one bulb going out leaves others lit, while adding bulbs raises total current and heats the battery.

Place ammeters in series to measure current and voltmeters in parallel across a device to measure voltage in dc circuits, ensuring negligible meter effects.

Combine series and parallel circuits with a 12-volt source; compute the parallel of 40 Ω and 10 Ω (8 Ω), yielding total resistance 28 Ω and current about 0.43 A.

Explore combination circuits by applying Ohm's law to determine currents and voltage drops across series and parallel branches, and compute the equivalent resistance for a 12-volt source.

Explore using equivalent resistance to analyze combination circuits by solving for branch currents with Ohm's law, then verify power and total current in a multi-resistor network.

Apply Kirchhoff's laws to a simple combination circuit, forming loop and junction equations. Use Ohm's law to relate voltages and currents and solve for I1, I2, I3.

Solve circuits word problems by analyzing parallel and series resistors, and calculating equivalent resistance. Apply Ohm's law to determine currents and voltages, including drops, in branches.