A. Electromagnetic induction. B. Chemical reactions. C. Mechanical force. D. Heat transfer. 相关知识点: 试题来源: 解析 A。解析:变压器是利用电磁感应将电能从一个电路传输到另一个电路。B 选项化学反应、C 选项机械力、D 选项热传递都与变压器的工作原理无关。反馈 收藏 ...
A photovoltaic cell is a technology used in harvesting energy and converting light/ solar energy into electricity. Light energy is the energy that has the ability to make many types of light that human eyes can see. Electrical energy is the type of energy generated through the movement of part...
The name is a bit of a misnomer, though, because electrical energy itself (often called electricity) isn't really a form of energy. It's more a way that energy is transferred between objects. In its most bare-bones form, electricity is the transfer of energy between electrons. Every...
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Electric Potential (Energy) When we harness electricity to power our circuits, gizmos, and gadgets, we're really transforming energy. Electronic circuits must be able to store energy and transfer it to other forms like heat, light, or motion. The stored energy of a circuit is called electric...
Which of the following is not a type of energy or energy transfer? a. work b. heat c. thermal energy d. mass What is the internal energy (U) change of a system that emits 358 J of heat and receives 412 J of work? What is a form of energy that exhibits wavelike behavior as it...
It can merely be converted from one type of energy to another, or be transferred. Since no ideal electrical system exists, there will always be some losses when there is a transfer of energy. The most common form of loss within an electrical system is heat. If a circuit is physically ...
Transformer Definition: A transformer is a passive device that transfers electrical energy from one circuit to another using electromagnetic induction. Working Principle: The working principle of a transformer involves mutual induction between coils to transfer electrical energy. ...
Electrical transformers are used to transform electrical energy. How they do so is by altering voltage, generally from high to low. Voltage is simply the measurement of electrons, how many or how strong, in the flow. Electricity can then be transported more easily and efficiently over long ...
Batteries are common energy sources which convert chemical energy to electrical energy. They have two terminals, which connect to the rest of the circuit. On one terminal there are an excess of negative charges, while all of the positive charges coalesce on the other. This is an electric pot...