If you are interested in learning everything about electricity, you should start by understanding the basic components that make up any electrical design and how they work. Think about how the great pyramids of Egypt were built using just blocks of rock. The rocks themselves were nothing, but when combined with careful design they formed such grand structures!

Similarly, you need to know about the basic electrical components and how they work together to create wonderful modern electrical systems. Below you will find information about the most common electrical components:

The very first component that you should know about is the resistor. It is fairly easy to assume that a resistor, as the name suggests, will resist electricity that flows through it, and you would be correct in that assumption too! Any situation that demands the flow of current to be controlled at a desired level will require a resistor.

Here are two scenarios that better explain what a resistor does. In both cases, we will be turning on a LED:

Scenario 1 – Without Resistor

Scenario 2 – With Resistor

If a resistor is like a cushion that is used to control the flow of electricity, then capacitors are like small rechargeable batteries that store small amounts of charge in them. Capacitors do two things at the same time:

By so doing, they are able to stabilize almost any circuit. There are two types of capacitors that are primarily used:

I briefly alluded to LEDs in the scenarios that were used under “Resistors” above. LEDs are just like bulbs except that they are extremely reliable. You can find them on practically every appliance in your home that features some kind of an indicator light. A typical LED bulb can last decades with no sign of dying.

Since they are so reliable, they are used to indicate the state of current at any point in a circuit. An important task like checking the output voltage or current on a circuit becomes simpler with these light-based indicators.

The resistors, capacitors, and LEDs are the simple stuff in electrical circuits. Now, let us talk about the first complicated component – the transistor. Transistors are used to build complex electrical systems, such as amplifiers for instance. A simple way to understand transistors is to think of a switch. A basic switch has an “on” and an “off” state. These are controlled by the position of the switch, which is changed manually.

A transistor is a more advanced switch that has multiple output states. Unlike a switch, you cannot change these states manually. The only way to switch the transistor between various states is to run current through it. By controlling the current that flows through the transistor, you can control the output state to achieve the results you desire.

Elon Musk’s vision of an entirely electric car market is coming into form.

Just a few years ago, a former Daimler chairman was quoted in an L.A. Times article by calling Tesla “a joke that can’t be taken seriously compared to the great car companies of Germany.” They aren’t laughing now after 325,000 buyers put down reservations for the Tesla Model 3 in its first week.

Already though, the cost of electric car batteries have dropped from $1,000 per kWh to $350 per kWh over the last five years. As the battery and thus the vehicle becomes more affordable, the presence of electric cars will only continue to grow.

With that has come the need for home charging stations.

Just about all electric vehicles will come with a Level 1 Charger. This is your baseline charging system, where the car connects with a 120V outlet in your home and takes about an entire night for a full charge.

If you’re mostly driving throughout the city, then that’s probably all you need. But if you’re always on the go, and use your electric vehicle for distance trips too, then you should look into a Level 2 Charging Station.

We need to quickly say that the chargers don’t actually increase the capacity of your car’s battery, that’s already established when it’s manufactured. Level 2 chargers simply direct more of your home’s current when you hook it up, enabling a much faster charging time.

To give an idea, the Nissan Leaf takes 25 hours for a full charge on a home outlet; with a Level 2 hook-up, it takes 7 hours. Or compare it to the Chevy Volt, the hybrid-electric vehicle that takes 11 hours on Level 1 and just 3.2 hours on Level 2.

Sticking with the Nissan Leaf, an all-night charge on Level 1 current will give it about 105 miles. If you drive more than that, you will be comforted with a Level 2 charge, which gives you the same mileage in half the time (4-5 hours with Level 2 Charging). This means you can go about your day without having to come home and charge, or have to find a public charging station to hook up to.

Good thing is, costs on installing residential stations are becoming more affordable. Many people go with the Level 2 charge off the bat and just factor it into the costs of buying the car.

In our previous blog, we mentioned the importance of understanding when not to DIY at a general level. Today, we will look at specific instances of when it would be wise to call upon the services of an emergency electrician. As always, we recommend all electrical work be done by a certified professional, but we do understand that the DIY culture created by internet interconnectivity has more homeowners than ever attempting to take home repairs into their own hands. The following instances are a few definite instances that require the attention of an electrician, more specifically the services of a 24 hour electrician. These examples include:

We hope you never need an emergency electrician, but it is likely that you will need electrical services of some sort while you own your home. If you ever finding yourself in need of an electrician in Des Moines, please contact our certified professionals for your electrical needs or emergency electrician services.