Voltage For Dummies

For dummies lets compare it to water.

Voltage for dummies. A three wire three phase circuit is usually more economical than an equivalent two wire. Different regions may use different voltages. Microsoft office web programming and pcs including 30 for dummies books. Although these systems may seem intimidating at first a walkthrough on 3 phase wiring for dummies will help clarify the whole situation.

How to use a multimeter for dummies. It is a type of polyphase system and is the most common method used by electrical grids worldwide to transfer power. It is also used to power large motors and other heavy loads. These voltages are known as extra low voltages relate to touch voltage limits.

They can also be found in large residential complexes and appliances requiring a large amount of power. Tungsten halogen and standard incandescent are the lamps of choice in the growing low voltage lighting system world each of the three basic types of light sources incandescent fluorescent and hid has its own particular applications and advantages. Finally remember that if you know the voltage of your power supply then you can calculate the current through a bulb fuse or other electrical appliance or component based on its rating in watts. Watts volts and amperes.

Current is the rate at which charge is flowing. Voltage is the difference in charge between two points. Understanding the basics of low voltage lighting. Resistance is a material s tendency to resist the flow of charge current.

So when we talk about these values we re really describing the movement of charge and thus the behavior of electrons. Now if you have a pipe which that water needs to flow through and the water pressure on one side is more than the pressure is on the other side it will cause the water to flow. It can be tricky to get precise voltage and resistance readings when using a multimeter for the first time. A safe voltage is considered to be less than 50v rms ac or 120v dc ripple free.

Three phase electric power is a common method of alternating current electric power generation transmission and distribution. To use the equation correctly you must make sure that you measure power voltage and current using their standard units. In other words power p equals voltage e times current i. Voltage is the water pressure and ampere current is the flow of the water.

The voltage that s available in a standard electrical outlet in the united states is about 117 v. You won t get the voltage value on the meter s display if you left the device in the current mode.