One of the most recurring subjects in college entrance exams, electricity, presents at least five things you need to know related to the importance of this phenomenon.
Electricity which can be managed by companies like e360 power company for instance is in almost everything we do in our daily lives. Heaters, air conditioners, lamps, showers, and electric irons are examples of everyday appliances that need electricity to work. This phenomenon is one of the most recurrent Physics subjects in entrance exams and the High School Exam. Here are 4 things you should know about this topic!
- How Is Electricity Generated?
In most countries, the main form of electricity generation which can be managed by firm like e360 power company for instance is carried out by hydroelectric plants, in which the force of water turns turbines that, in turn, generate energy through electromagnetic processes. Other forms of electric energy generation, but less expressive, are coal burning in thermoelectric plants, the force of the winds (wind energy), solar energy, and nuclear energy.
- Appliances That Consume The Most Energy
The electric shower is usually the device that consumes the most electricity in residence, representing, on average, 30% of the value of the energy bill. This equipment consumes a lot of energy because it heats the water through the Joule effect, which transforms electrical energy into heat. To save energy, the shower should be used in the summer position on hot days. Another way to reduce energy and water consumption is to reduce bath time.
Air conditioners are also responsible for high energy consumption. To save energy, the filters of these devices must always be clean, as dirt prevents air circulation, which makes the device need to exert more force to function correctly. With the air conditioning on, doors and windows must also be well closed, thus avoiding the entry of air from the external environment, minimizing the work of the equipment.
As for lighting, lamps represent about 20% of the energy bill. The secret to saving money is to avoid lighting them during the day and always use fluorescent or LED lamps, which consume less energy when compared to incandescent lamps.
- What Is Kwh?
The kWh is the acronym for kilo Watt hour and is an energy measurement unit. The amount of electrical energy consumed is shown in the energy bills in kWh. The energy consumed by an appliance is determined from the product of the equipment’s power by the time of use.
1 kWh = 3.6 x 10 6 J
- What Is The Difference Between AC And DC?
DC is an acronym for direct current, also known as direct current. This electrical current maintains unique values and directions in a circuit and is provided by cells and batteries. AC is the acronym for alternating current. This type of current has variable values and propagation direction in the circuit. The current in the residential electrical network is of the alternating type.