Read about the difference between the subject and object form of personal pronouns and test your knowledge in practice exercises.

Learners review Kirchhoff's Current Law and work six practice problems. Feedback is given.

Students practice adding some of the basic prefixes to words in the English language.

In this interactive object, students work 11 practice problems and solve for total resistance and current, the current through each resistor, the voltage across each resistor, and the power dissipated.

Learners review Kirchhoff's Voltage Law and work six practice problems. Feedback is given.

Students practice adding some of the basic prefixes to words in the English language.

Students complete 10 practice problems. These deal with the determination of series current, zener current, and load current, and if the zener diode is operating in the breakdown region.

Learners work practice problems to calculate the total resistance of a circuit. Feedback is provided.

Students complete 10 practice problems.

Learners identify the parts of speech by following a certain order until each word in a sentence is labeled. In a variety of exercises, learners practice finding verbs, prepositional phrases, subjects, nouns, pronouns, adjectives, adverbs, and conjunctions.

Students view the mathematical expression of a sinusoidal waveform with respect to time (t) and solve five problems. The answers are provided so students may check their work.

In this interactive object, learners solve for total resistance and current, the current through each resistor, the voltage across each resistor, and the power dissipated.

Learners examine a series-parallel circuit and solve 14 problems related to voltage, current, and power. A help screen is provided.

In this interactive object, learners work 12 problems dealing with dc circuit analysis.

In this interactive object, students calculate capacitive reactance, impedance, current, and power in parallel RC circuits.

In this learning activity you'll build a resistor's color code based on the bands.

In this interactive object, learners solve for total resistance and current, the current through each resistor, the voltage across each resistor, and the power dissipated by each resistor.

In this interactive object, learners solve for total resistance and current, the current through each resistor, the voltage across each resistor, and the power dissipated by each resistor.

In this interactive object, students calculate inductive reactance, impedance, current, and power in parallel RL circuits.

In this interactive object, learners solve for total resistance and current, the current through each resistor, the voltage across each resistor, and the power dissipated by each resistor.