What is an electrical current used for? A. Causing the body to burn its fat. B. Controlling the body’s storage of fat. C. Seeing if the headset will be affected. D. Speeding the process of one’s digesting. 相关知识点: 试题来源: 解析 A ...
What is an Electrical Circuit? Discussion Comments ByMrMoody— On May 21, 2011 We had an ice storm a few years back and there were major power outages all over town. It seemed like everyone was buying an electric current generator. However, these appliances can be very dangerous, and we ...
Ohm's law says that in an electrical circuit, the current passing through a resistor between two points, is related to the voltage difference between the two points, and inversely related to the electrical resistance between the two points. This relation is shown in the following pee Where I ...
Vis the potential difference measuredacrossthe conductor in units ofvolts, andRis the resistance of the conductor in units of ohms. More specifically, Ohm's law states that theRin this relation is constant and is independent of the current. Ohm's law is used in electrical engineering for solvin...
AC vs DC Current: Alternating current (AC) periodically reverses direction, while direct current (DC) flows in one direction. Current Measurement: Current is measured using devices like ammeters and galvanometers. What is Electric Current? Electric current is defined as a stream of charged particl...
If an electrical current of 333 mA is passed through an electrochemical cell for 26.0 minutes,what charge,in coulombs,is transferred through the cell?Charge passed through cell = (519 C)If the charge calculated in the first part of this question is passed through a cell constructed of copper...
The magnitude of the electric current is measured in coulombs per second, the common unit for this being the Ampere or amp which is designated by the letter ‘A’. The Ampere or amp is widely used within electrical and electronic technology along with the multipliers like milliamp (0.001A),...
Electrical currentis the flow of charged particles. It is similar to flow of water molecules in a river. AC and DC are ways of flow of current an electrical circuit.Electric charge or current can flow only in one direction (DC) or in the charge can change direction periodically (AC). ...
The resistance of an object is represented as the ratio of the voltage across something to the current passing through it. The resistance is measured in Ohms. The conductance of a component is a determination of how quickly current can flow within the component. Conductance is measured in Siemen...
What is an Electric Vehicle? An electric vehicle (EV) is a car that runs entirely or partially on electricity instead of gasoline. The electricity is stored in reusable batteries and used to power an electric motor that turns the wheels. Electric vehicles are categorized as follows: Battery Ele...