[Free Registration/Login Required] Learn about how high-voltage alternating current (AC) electricity generated by a power station is converted into low-voltage AC electricity for your home using this interactive simulation. A PDF...

A study guide covering electrical systems.

As you put the different type of batteries on the volt meter pay attention to the voltage equations in the table. See how positive and negative numbers interact.

Explains and illustrates the meaning of series connections. Discusses the voltage-current-resistance relationships for series connections of resistors. An example problem on series calculations can be accessed from this page.

Explains and illustrates the meaning of parallel connections. Discusses the voltage-current-resistance relationships for parallel connections of resistors. An example problem on parallel calculations can be accessed from this page.

The core of this lesson is simple circuits and the differences between parallel and series circuit design. Students perform experiments to test the differences between the two circuit designs using low voltage light bulbs.

Piezoelectricity is an electrical effect that occurs when mechanical stress is applied to certain materials, e.g., quartz crystals, Rochelle salts, and barium titanate. The sound of a wrist watch alarm or a smoke detector is made by a...

Lord Kelvin (William Thomson) developed electrostatic theory and a range of novel and interesting electrostatic apparatuses. Described here is a reconstruction of a water dropper electrostatic generator. It's capable of generating...

A simulation investigating a parallel-plate capacitor which is charged by connecting one plate to the positive end of a battery, and the other plate to the negative end. The battery sends electrons from one capacitor plate to the other...

Simulation demonstrating how a point charge, a dipole, or a quadrupole shows field vectors or voltage. Change the charge and see the electric field direction and magnitude, and then record the detector values using a built-in data...

The National Grid is a high-voltage electric power transmission network, connecting power stations and 340+ substations ensuring supply and demand is in the balance. Nigel Williams speaks to Robert Llewellyn about how the National Grid...

Joseph Henry was an American scientist who pioneered the construction of strong, practical electromagnets and built one of the first electromagnetic motors. During his experiments with electromagnetism, Henry discovered the property of...

[Free Registration/Login may be required to access all resource tools.] For this lesson, students learn about the invention of the battery and how a battery works, and about resistance in an electrical circuit. As well, Ohm's Law is used...

Manipulate the voltage and resistance for a simple circuit to see how these affect the amount of current. The symbols in the Ohm's Law equation grow bigger and smaller to emphasize the changes.

Determine the resistance of a wire based on its composition and its physical dimensions. Find the current that would flow through the wire when the wire is connected to a certain voltage.

Determine the net voltage from two charges.

Explains what an LCR meter is and how it is used to measure the inductance, capacitance, and resistance of a circuit. Lists the different parameters of a circuit that it measures, describes two types of LCR meters, and gives definitions...

This lab is designed to have students investigate the relationships between voltage, resistance and current in a series circuit with up to three passive components. The batteries in this simulation can be varied from ideal batteries to...

This lab is will allow students to vary the resistance of a light bulb and the voltage difference across a light bulb. They will be able to see how these two factors affect the current through the light bulb and the power used by the...

This lab is designed to have students look at the conversion of electrical energy into heat energy. Students will have control over the amount of water in their beaker, the voltage of the power supply and the time they add energy to the...

This lab is designed to have students investigate the factors that affect the rate at which a capacitor discharges. Students can change the resistance and capacitance in the circuit and then monitor the discharging of the capacitor....

A comprehensive list of questions often asked about redox reactions. Find answers to questions about voltage, rust, and electroless plating in this FAQ.

Use resistance formulas to determine the total resistances of the series and parallel parts. Then, use Ohm's Law to calculate the voltage drops across and currents through each part.

[Free Registration/Login may be required to access all resource tools.] This lesson looks at the function of transformers, at how turns and voltage ratio are related, and at solving transformer problems with mathematics. Includes a...