Can a transformer be used with AC and DC? A transformer is a device which step-up or step-down the level of AC current or voltage without changing the primary (i.e. input source) frequency. Transformer only works on AC and can’t … Continue reading →

What do I plug into ATX 12V? You’re currently looking at the “PCI-Express 8-pin & 6-pin compatible.” This plugs in to video cards. You want the “EPS/ATX12V 8-pin & 4-pin compatible.” This is what you’re going to plug into your … Continue reading →

Ohm’s Law dictates that for an equal amount of power in a circuit, a doubling of the voltage halves the amount of current required. Simply put, higher current requires larger wires. Thus, the change to 12 volts meant less copper … Continue reading →

A computer’s CPU is one of its most reliable parts. The CPU will hardly fail unless its major components, including the CPU fan, power supply for the system, and the hard drive, fail. The lifespan of a CPU is affected … Continue reading →

Most Arduino boards have an external voltage input, and a range of 7-12V is recommended. So 9V seems perfect. The problem is that most Arduino boards use a linear regulator to drop that 9V to 5V. If you are drawing … Continue reading →

How do I adjust the voltage on my power supply? Although there are +/- output models that cannot be adjusted, the output from most Power Supplies can be adjusted by turning the voltage output adjuster (V. ADJ). The voltage will … Continue reading →

If a high voltage needs to be generated from a low voltage, a boost converter can be used. This represents one of the three elementary switching regulator topologies and requires only two switches, an inductor, and input and output capacitors. … Continue reading →

The only way to change to a cheaper electricity tariff is to switch – either by switching your electricity tariff or by changing electricity supplier entirely. While the main reason most people switch is to get cheaper electricity, there are … Continue reading →

The alkaline variant of the 9V battery is also referred to as 6LR61 and 006P. Other industry names for the 9V battery can be Duracell MN1604, Rayovac A1604, Energizer 522, Varta 4922, MX2400, 1604A, Radio Battery, Smoke Alarm Battery, 9V … Continue reading →

Graphene is a form of carbon, whose properties can act as a filter between the body and external environment to ensure ideal temperature for the wearer. This makes it ideal in extreme temperatures, sportswear and wearables. Can graphene be used … Continue reading →

It is cheaper over the longer period of time for consumers to buy a more expensive battery with more watt-hours. Since higher Wh batteries also accomplish more work before requiring a recharge. That means they also save you time. How … Continue reading →

Someone calculate the energy density by multiplying the maximum capacity of the battery for the mid-point potential (Potential of the battery when it is discharged to 50% of its capacity). How do you find the specific energy of a battery? … Continue reading →

How much electricity does a 10kW solar system generate? In total, this system generates about 10,000 watts of electricity per hour as defined by laboratory Standard Test Condition (STC) results. This breaks down to an average of between 29 and … Continue reading →

In what later became the United States, the pointed lightning rod conductor, also called a lightning attractor or Franklin rod, was invented by Benjamin Franklin in 1752 as part of his groundbreaking exploration of electricity. What is Ben Franklin’s lightning … Continue reading →

Table I. Cell type Energy per cell/Wh Specific energy/Wh/kg 18650-A1 5.13 114.0 18650-B1 9.13 206.2 18650-C1 11.23 231.5 20700-D1 14.54 237.5 How much energy is in a 18650 battery? How much power does an 18650 have? A 3.7v a 3400mAh … Continue reading →