enow.com Web Search

Search results

1. Results from the WOW.Com Content Network

2. Voltage converter - Wikipedia

   en.wikipedia.org/wiki/Voltage_converter

   Switched-mode power supplies have become widespread in the early twenty-first century; they are smaller and lighter than the once-universal transformer converters, and are often designed to work from AC mains at any voltage between 100 and 250 V. Additionally, because they are typically rectified to operate at a DC voltage, they are minimally ...

3. Tesla coil - Wikipedia

   en.wikipedia.org/wiki/Tesla_coil

   A Tesla coil is an electrical resonant transformer circuit designed by inventor Nikola Tesla in 1891. [1] It is used to produce high-voltage, low-current, high-frequency alternating-current electricity.

4. Lead–acid battery - Wikipedia

   en.wikipedia.org/wiki/Lead–acid_battery

   The sum of the molecular masses of the reactants is 642.6 g/mole, so theoretically a cell can produce two faradays of charge (192,971 coulombs) from 642.6 g of reactants, or 83.4 ampere-hours per kilogram for a 2-volt cell (or 13.9 ampere-hours per kilogram for a 12-volt battery).

5. Public address system - Wikipedia

   en.wikipedia.org/wiki/Public_address_system

   Smaller, battery-powered 12 volt systems may be installed in vehicles such as tour buses or school buses, so that the tour guide and/or driver can speak to all the passengers. Portable systems may be battery powered and/or powered by plugging the system into an electric wall socket.

6. Sodium-vapor lamp - Wikipedia

   en.wikipedia.org/wiki/Sodium-vapor_lamp

   A high-pressure sodium street light in Toronto A high-pressure sodium-vapor lamp An HPS lamp that isn't entirely off. A sodium-vapor lamp is a gas-discharge lamp that uses sodium in an excited state to produce light at a characteristic wavelength near 589 nm.

7. Radio-controlled car - Wikipedia

   en.wikipedia.org/wiki/Radio-controlled_car

   For these two models the designers constructed radio control systems, adapting six-volt car batteries, convertible top motors, and other full-size components from the Ford parts bins. Along with motive power, braking, and turning, the radio control system also reportedly operated the headlights, brake lights, and turn signals. [4] [5]