http://www.sciencejoywagon.com/physics-shop/topic/electricity/1.html Electricity
Use this unit to run any low-power apparatus.Output Voltage 1: 3.3VDC ± 0.3, fixed, switch-selectedOutput Voltage 2: 4.5VDC ± 0.3, fixed, switch-selectedOutput Voltage 3: 6VDC ± 0.3, fixed, switch-selectedOutput Voltage 4: 7.5VDC ± 0.3, fixed, switch-selectedOutput Voltage 5: 9VDC ± 0.3, fixed, switch-selectedOutput Voltage 6: 12VDC ± 0.3, fixed, switch-selectedDC Output Current: 1 ARipple & Noise: 100 mVp-p (35.355 mVrms)Line Regulation: 60 mV (±10% variation)Load Regulation: 1 300 mV (0 - 100%)No Load Input Current: 60 mAFull Load Input Current: 300 mAPower Requirements: 120VAC @ 60Hz
Price=$36.00
Buy]]> Tue, 27 Oct 2009 13:55:22 -0400 http://www.sciencejoywagon.com/physics-shop/p/electricity/218/low.htm http://www.sciencejoywagon.com/physics-shop/p/electricity/218/low.htm
I think this is a great design that can be introduced in electrostatics and be carried all the way through to circuits.
Small groups can work together setting up and charging this low-cost capacitor. We took two metal plates, 10cm square, and bent back the bottoms to provide for stand-up support and binding posts. You attach grounding wires or electroscope connections to the plates. Easy-to-use instructions walk your students through the process.
Price=$22.00
Buy]]> Tue, 27 Oct 2009 13:50:05 -0400 http://www.sciencejoywagon.com/physics-shop/p/electricity/217/capacitor.htm http://www.sciencejoywagon.com/physics-shop/p/electricity/217/capacitor.htm
Simple to use and safe to handle, students can use these resistance units to construct various types of circuits. Built with a high stability metal film element, these durable resistance units are more economical that resistance coils. Accuracy: 1%. 1W.

I suggest buying them in ratios of 2:1 (ie a 10 Ohm and a 5 Ohm)
Price=$3.65
Buy]]> Tue, 27 Oct 2009 11:51:48 -0400 http://www.sciencejoywagon.com/physics-shop/p/electricity/197/resistors.htm http://www.sciencejoywagon.com/physics-shop/p/electricity/197/resistors.htm
A convenient setup for one or two cells. The downside is that the wiring is hidden so it is not obvious how one tap gets 1.5V and the other gets 3V. A simple tool for communicating complex workings of electricity, this plastic battery holder is fitted with three banana plug jacks. You can easily switch between selections of DC, 1.5V, and 3V power for your experiments. The holder fits two D-cell batteries and can be used to demonstrate circuits, Ohm�s law, and the transformation of energy. Batteries not included.
Price=$19.25
Buy]]> Tue, 27 Oct 2009 11:49:15 -0400 http://www.sciencejoywagon.com/physics-shop/p/electricity/196/battery-2.htm http://www.sciencejoywagon.com/physics-shop/p/electricity/196/battery-2.htm
I find for the labs I use I need 8 wires per lab group, so this set serves two groups. Banana Plug Cord Sets, 12" Banana Plug Cord Set: 16 cords, (8 red, 8 black)
Price=$79.95
Buy]]> Tue, 27 Oct 2009 11:46:09 -0400 http://www.sciencejoywagon.com/physics-shop/p/electricity/195/banana.htm http://www.sciencejoywagon.com/physics-shop/p/electricity/195/banana.htm
This meter is handy and affordable. Initially though I really like students to use separate meters for measuring circuits. It helps them better separate the concepts of current and voltage. A multimeter makes those two a little bit harder to grasp. Student Multimeter Perfect for Lab Work. Includes five electrical functions and temperature.
• 0.5% DCV accuracy
• DC current to 10A• Resistance, 0.1 Ohm to 40 MOhm
• Diode test
• 3 3/4-digit 4000 count LCD display
• Wide range temperature measurement
• Drop-resistant caseComes with test leads, battery, temperature probe, and operating instructions.Specifications:Volts Ranges: DC: 400mV, 4V, 40V, 400V, 1000V 4V, 40V, 400V, 700V AC: 400mV, 4V, 40V, 400V, 700VResolution: DC & AC: 100ìV, 1mV, 10mV, 100mV, 1VAccuracy: DC: ±0.5%. AC: ±0.8%Frequency response: 40 to 400HzCurrent Ranges: DC: 400ìA, 40mA, 400mA, 10AResolution: DC: 100nA, 10ìA, 100A, 10mAAccuracy: DC: ±1%Resistance Ranges: 400Ω, 4kΩ, 40kΩ, 400kΩ, 4MΩ, 40MΩResolution: 0.1Ω, 1Ω, 10Ω, 100Ω, 1kΩ, 10kΩAccuracy: ±0.8%Capacitance: 4nF to 200nF (6 ranges, ±3.5%)Frequency: 100Hz to 30MHz (6 ranges, ±0.2%)Temperature: -40°C to 1000°C ±0.75%
Price=$47.00
Buy]]> Tue, 27 Oct 2009 11:41:01 -0400 http://www.sciencejoywagon.com/physics-shop/p/electricity/194/multimeter.htm http://www.sciencejoywagon.com/physics-shop/p/electricity/194/multimeter.htm
Low-Voltage Power Supply Affordable, Safe and Sturdy The grounded chassis and isolated terminals of our low-voltage power supply ensure student safety. Other features include: Output: 6 VAC/5A; 1-6 VDC/5A. Overload protection: Thermal circuit breaker. Power requirements: 115 VAC, 60Hz. Dimensions: 17cm x 18cm x 10cm.
Price=$179.39
Buy]]> Tue, 27 Oct 2009 11:23:10 -0400 http://www.sciencejoywagon.com/physics-shop/p/electricity/189/6v-ac-dc.htm http://www.sciencejoywagon.com/physics-shop/p/electricity/189/6v-ac-dc.htm
Create interest with some discrepant events. Getting shocked by 50,000 Volts and live to explain why you didnt die. A classic table version of the Tesla Coil. Illustrate the concepts of induction, resonance and high frequency electricity.
Price=$310.00
Buy]]> Tue, 27 Oct 2009 11:18:53 -0400 http://www.sciencejoywagon.com/physics-shop/p/electricity/188/tesla-2.htm http://www.sciencejoywagon.com/physics-shop/p/electricity/188/tesla-2.htm
The Tesla-type high-frequency coil is mounted in a hard Bakelite case, sized so you can hold it in one hand. One terminal of the secondary is attached to the pointed end of the coil. A screw at the large end lets you adjust it as you need. The voltage is 40-50kV and the spark frequency is 3 to 4 MHz. The spark length is adjustable by turning a knob. You will need to turn the unit off after 10 minutes of continuous use to cool. It comes with a connecting cord and attachment plug, for use on 115 VAC. 50/60 Hz. A version with a built-in on/off switch is also available. Includes instructions. Not available in Canada. Get the one with the switch, it is easier to set up and puts less wear on the contacts.
Price=$230.00
Buy]]> Tue, 27 Oct 2009 11:14:36 -0400 http://www.sciencejoywagon.com/physics-shop/p/electricity/187/tesla.htm http://www.sciencejoywagon.com/physics-shop/p/electricity/187/tesla.htm
Constructed of lightweight metal. This D-cell battery holder has tab connectors to allow for assembly of multiple holders in series or parallel circuits. Practical for demonstrations and experiments requiring small, low-voltage power requirements. Our circuit wires had alligator clips that slip over the banana plugs and that made it easy to clip them to the batter holder to complete the circuit.
Price=$3.25
Buy]]> Tue, 27 Oct 2009 11:09:52 -0400 http://www.sciencejoywagon.com/physics-shop/p/electricity/186/battery.htm http://www.sciencejoywagon.com/physics-shop/p/electricity/186/battery.htm
I like to have at least one of these around to demonstrate resistivity of a wire. The simple reliable design lets students see that the tap simply changes the length of wire. Useful for a variety of lab demonstrations, these rheostats provide a variable resistance in electrical circuits. Features include a wire winding on a vitreous enameled tube with cast-aluminum end supports to hold the tube. Aluminum sliding contact carriage, mounted on the slide bar, carries a copper contact as resistance and current rating stamped on the upper surface of the contact carriage. Includes three binding posts, one at each end of the copper winding and the other at one end of the slide bar, for electrical connections Diameter of coil: 5cm. Unit measures 35cm x 13cm.
Price=$110.00
Buy]]> Tue, 27 Oct 2009 11:06:19 -0400 http://www.sciencejoywagon.com/physics-shop/p/electricity/185/variable.htm http://www.sciencejoywagon.com/physics-shop/p/electricity/185/variable.htm
This meter is durable and a classic for low voltage lab work. The 0-5V range is perfect for circuits energized by only a cell or two. choose model WLS30663-44
Price=$21.25
Buy]]> Mon, 26 Oct 2009 22:46:52 -0400 http://www.sciencejoywagon.com/physics-shop/p/electricity/182/voltmeter.htm http://www.sciencejoywagon.com/physics-shop/p/electricity/182/voltmeter.htm
These meters are durable and ask the student to consider the appropriate range of the current the expect. Go with WLS30663-12 which has threee ranges 0-50mA, 0-500mA, and 0-5A
Price=$21.25
Buy]]> Mon, 26 Oct 2009 22:40:56 -0400 http://www.sciencejoywagon.com/physics-shop/p/electricity/181/analog.htm http://www.sciencejoywagon.com/physics-shop/p/electricity/181/analog.htm
Simply connect appliances to the Kill A Watt EZTM, and it will assess how efficient they are. The large LCD display shows consumption by the Kilowatt-hour, just like the power company, and also displays voltage (V), line current (Hz), current (I) and more. Students can calculate the cost to run any device with this inexpensive and easy-to-use meter. Kill A Watt EZTM adds the ability to project the cost for you - by the day, week, month, or year and includes a battery backup.
Price=$29.99
Buy]]> Sat, 17 Oct 2009 00:52:55 -0400 http://www.sciencejoywagon.com/physics-shop/p/electricity/39/kill-a-2.htm http://www.sciencejoywagon.com/physics-shop/p/electricity/39/kill-a-2.htm
Get two meters for the price of one! Analog student meter measures voltage or current! Just slide the terminal cover to convert from volts to amps.  Lightweight, portable, and convenient. This unit has a special safety feature that prevents mis-wiring by students. The auto switching mechanism covers the unused terminals for volts or amps when the other is in use. The meter also makes clear which function is in use when the switch is moved. Dimensions: 6.5 cm x 11.3 cm. Voltage range: 0-100mv-1v-10v-50v. Amperage range:0-100µA-100mA-1A-5A.
Price=$20.00
Buy]]> Sat, 17 Oct 2009 00:52:46 -0400 http://www.sciencejoywagon.com/physics-shop/p/electricity/32/dual-amp.htm http://www.sciencejoywagon.com/physics-shop/p/electricity/32/dual-amp.htm
Measure very small amounts of current supplied by your voltaic cell or magnetic induction experiment.
Price=$19.50
Buy]]> Sat, 17 Oct 2009 00:52:44 -0400 http://www.sciencejoywagon.com/physics-shop/p/electricity/31/galvanomet.htm http://www.sciencejoywagon.com/physics-shop/p/electricity/31/galvanomet.htm
No more wire nests!  The five mini bulbs can be quickly arranged in series, parallel, or complex circuits, simply by adjusting the Buss bars.  5 bulbs included. Great for demonstrations or Labs.
Price=$30.00
Buy]]> Sat, 17 Oct 2009 00:41:01 -0400 http://www.sciencejoywagon.com/physics-shop/p/electricity/14/series.htm http://www.sciencejoywagon.com/physics-shop/p/electricity/14/series.htm
Watts Up PRO includes all the displays of the standard Watts up? meter but also comes with software and USB PC interface. The software automatically graphs all data and includes an integrated analysis tool, called the Payback Calculator, which automatically calculates the time required for a new energy efficient appliance to pay for itself. Monthly savings are calculated and then are compared to the purchase price of the new appliance. As a data logger, the PRO records all data into non-volatile (stored even if power is lost) memory. Over one thousand data points can be stored, starting with a sampling rate resolution of one second. The sample rate is user selectable or can be automatically set (resolution decreases over time) so years of usage can be accurately recorded. The included cable allows for USB port connection of a PC and when used with the included software, data can be quickly downloaded to a computer where the software creates a data table and easy to manipulate graphs. The data and graphs can than be exported to popular spreadsheet and word processor programs for further analysis. Note how the graph at the right identifies the defrost cycle on a refrigerator. Watts Up PRO also records any power interruptions, which is extremely handy when performing an audit of several devices. In addition, the Pro is capable of real time logging when used with the additional Real Time Software (not included). 120v 60hz.
Price=$129.00
Buy]]> Sat, 17 Oct 2009 00:40:59 -0400 http://www.sciencejoywagon.com/physics-shop/p/electricity/12/watts-up.htm http://www.sciencejoywagon.com/physics-shop/p/electricity/12/watts-up.htm