How do I know how many watts my power adapter is? All you need to do is look for the adapter’s maximum voltage and amps. Take these two figures and multiply them, and you’ll find out the adapter’s maximum wattage. … Continue reading →

Exposure to direct sunlight or keeping it in a hot environment can cause the phone to heat up thereby draining the battery life even more. Hence, don’t use your phone too much and ignore when the gadget produces heat, and … Continue reading →

The big difference between an adapter and a converter is electricity. While the purpose of an adapter is to simply help the plugs on your electronics fit into (or more aptly, adapt to the shape of) foreign outlets, a converter’s … Continue reading →

Vumatel’s network is backed up by generators and UPS hardware so if you have backup power* at home, you will be able to surf the internet during load-shedding. Load-shedding is currently occurring on a mass scale across many suburbs at … Continue reading →

People attuned to survivalist skills or emergency preparedness know that with a simple device known as a power inverter, the 12-volt electrical current produced by an ordinary car battery can be converted into 120-volt current that can power many types … Continue reading →

No, Only AC has neutral which means approximately 0 voltage . For DC it is negative. That’s why ac and dc not share the same neutarl .. Can DC and AC share same ground? Yes, they can share the same … Continue reading →

12 volts. A standard car cigarette lighter produces 12 volts of power. Most cigarette lighters run on a 10-amp fuse that allows for 12 volts or 120 watts of power output at maximum. Is a cigarette lighter a 12V? Your … Continue reading →

All chargers take your line voltage – typically 120 or 220 volts – and convert it to 5 volts. It’s that 5-volt side that is then connected to your device to charge it. 5 volts is not only the same … Continue reading →

Higher voltage means lower current, so less power loss by a lot. Because power loss is current squared times resistance, power loss goes down by the inverse square of the ratio of current. Why there is less power loss in … Continue reading →

Second, lightning is a direct current (DC) that would require it to be converted to alternating current (AC) so it could be used for lights and other equipment. Is lighting a DC or AC? In a lightning, the current flow … Continue reading →

DC can be generated in a number of ways: An AC generator equipped with a device called a “commutator” can produce direct current. Use of a device called a “rectifier” that converts AC to DC. Batteries provide DC, which is … Continue reading →

The US wanted to make the change too, but it was considered to be too costly for people to replace their appliances (unlike in Europe, most households in the US had a number of significant electrical appliances by then). Since … Continue reading →

No. You cannot. You can, however, use a 5V relay instead of a 12V relay as long as you put the appropriate resistor in series with the relay coil (so that the relay coil sees the same voltage across it … Continue reading →

There are two types of power supplies existed, AC and DC power supply. Based on the electrical device’s electric specifications it may use AC power or DC power. What are the 4 types of power supply? There are three major … Continue reading →

Simply put, DC motors can turn in either direction (clockwise or counter-clockwise) and can be easily controlled by inverting the polarity of the applied voltage. Can you reverse the direction of a DC motor? Are DC motors reversible? Yes! DC … Continue reading →