define current in physics - EAS

13,400,000 kết quả

  1. Từ điển

    Tra cứu
    Chúng tôi không tìm thấy định nghĩa. Hãy thử tìm kiếm trên web cho
    current
    [ˈkʌr(ə)nt]
    TÍNH TỪ
    current (tính từ)
    1. belonging to the present time; happening or being used or done now.
      từ đồng nghĩa:
      từ trái nghĩa:
    DANH TỪ
    current (danh từ) · currents (danh từ số nhiều)
    1. a body of water or air moving in a definite direction, especially through a surrounding body of water or air in which there is less movement.
      "ocean currents"
      từ đồng nghĩa:
    2. a flow of electricity which results from the ordered directional movement of electrically charged particles.
      "this completes the circuit so that a current flows to the lamp" ·
      "magnetic fields are produced by currents flowing in the cables"
      • a quantity representing the rate of flow of electric charge, usually measured in amperes.
        "at high currents there is wasteful power dissipation"
    3. the general tendency or course of events or opinion.
      "the student movement formed a distinct current of protest"
      từ đồng nghĩa:
    GỐC
    Middle English (in the adjective sense ‘running, flowing’): from Old French corant ‘running’, from courre ‘run’, from Latin currere ‘run’.
    Dịch current sang
    [{"language":"en","Content":[{"word":"current","pos":"ADJ","confidence":1.0,"InternalModelInterfaceDoNotUse":"Microsoft.Search.ModelSerialization.Models.Dictionary.Translation.IContent_1, Microsoft.Search.Frontend.SchemaInterfaces, Version=8.1.0.0, Culture=neutral, PublicKeyToken=null","ModelResolver":null,"InternalFrameworkStateDoNotUse":null,"SchemaName":"Dictionary.Translation.Content","KifMajorVersion":1,"KifMinorVersion":0,"KifMinorVersion2":0}],"InternalModelInterfaceDoNotUse":"Microsoft.Search.ModelSerialization.Models.Dictionary.Translation.ILangContentPair_1, Microsoft.Search.Frontend.SchemaInterfaces, Version=8.1.0.0, Culture=neutral, PublicKeyToken=null","ModelResolver":{},"InternalFrameworkStateDoNotUse":null,"SchemaName":"Dictionary.Translation.LangContentPair","KifMajorVersion":1,"KifMinorVersion":0,"KifMinorVersion2":0}]
    Không tìm thấy bản dịch nào.
    Powered by Oxford Languages · Dịch giả Bing

  2. What is Electric Current: Definition, Types, Properties ...

    https://byjus.com/physics/electric-current

    05/09/2018 · Defining Electric Current. Let us now define electric current and also know about conductors and insulators. Electric Current is the rate of flow of electrons in a conductor. The SI Unit of electric current is the Ampere. Electrons are minute particles that exist within the molecular structure of a substance.

    • Thời gian đọc ước tính: 10 phút
    • Thời lượng Video: 5 phút

    • Electromotive Force

      EMF can be stated as the work done per unit of charge and the SI unit of …

      Chỉ xem kết quả từ byjus.com

    • Charge and current - Current, voltage and resistance ...

      https://www.bbc.co.uk/bitesize/guides/z88hvcw

      Current was originally defined as the flow of charges from positive to negative. Scientists later discovered that current is actually the flow of negatively charged electrons, from negative to ...

    • What is Current? - Definition from Whatis.com

      https://whatis.techtarget.com/definition/current

      13/10/2021 · Current is a flow of electrical charge carriers, usually electrons or electron-deficient atoms. The common symbol for current is the uppercase letter I. The standard unit is the ampere, symbolized by A.

      • Thời gian đọc ước tính: 2 phút

      • Electric Current – The Physics Hypertextbook

        https://physics.info/electric-current
        • current
          Electric current is defined as the rate at which charge flows through a surface (the cross section of a wire, for example). Despite referring to many different things, the word currentis often used by itself instead of the longer, more formal "electric current". The adjective "electric" is implied by th…
        • current density
          When I visualize current, I see things moving. I see them moving in a direction. I see a vector. I see the wrong thing. Current is not a vector quantity, despite my well-developed sense of scientific intuition. Current is a scalar. And the reason is… because it is. But wait, it gets weirder. The ratio …
        Xem thêm trên physics.info
        • Thời gian đọc ước tính: 6 phút

        • Electric Current - Definition, Types and Measurement ...

          https://www.vedantu.com/physics/electric-current

          An electric current is a rate of flowing electric charge past a point or region. An electric current exists when there is a net flow of electric charge through a region. The moving particles are called charge carriers, and there may be different types of particles in different conductors. In electric circuits, the charge carriers are electrons ...

          • Thời gian đọc ước tính: 6 phút

          • Current Density - Definition, What is Current, Types of ...

            https://byjus.com/physics/current-density
            • We can define current as the flow of electrically charged particles, mostly in those atoms which are electron-deficient. The standard symbol of current is capital I. The standard unit of current is ampere and it is denoted by A. Conversely, a current of one ampere is one coulomb of charge(6.24 x 1018charge carriers) going past a given point per second. According to Physicists…
            Xem thêm trên byjus.com
            • Thời gian đọc ước tính: 3 phút
            • Tải lên: 24/07/2015
            • Thời lượng Video: 5 phút
            • Xuất bản: 28/08/2018

          • Electrical Current Definition - ThoughtCo

            https://www.thoughtco.com/electrical-current-2698954
            Image
            The SI unitof electrical current is the ampere, defined as 1 coulomb/second. Current is a quantity, meaning it is the same number regardless of the direction of the flow, without a positive or negative number. However, in circuit analysis, the direction of current is relevant. The conventional symbol for c…
            Xem thêm trên thoughtco.com
            Xuất bản: 16/10/2006
            Tác giả: Andrew Zimm…
            Thời gian đọc ước tính: 4 phút

          • Electric current - Wikipedia

            https://en.wikipedia.org/wiki/Electric_current

            An electric current is a stream of charged particles, such as electrons or ions, moving through an electrical conductor or space. It is measured as the net rate of flow of electric charge through a surface or into a control volume. The moving particles are called charge carriers, which may be one of several types of particles, depending on the conductor. In electric circuitsthe charge carriers ar…

            Wikipedia · Nội dung trong CC-BY-SA giấy phép

          • Electric Current Formula - Definition, Equations, Examples

            https://www.toppr.com/guides/physics-formulas/electric-current-formula

            On the basis of the flow of electric charge, the current can be classified into two types, which are alternating current and direct current. In direct current, the charges flow in one direction but in alternating current, the charges flow in both the direction. The Formula for Electric Current

            • Thời gian đọc ước tính: 3 phút

            • Voltage, Current, Resistance, and Ohm's Law - learn ...

              https://learn.sparkfun.com/tutorials/voltage-current-resistance-and-ohms-law

              Voltage is the difference in charge between two points. Current is the rate at which charge is flowing. Resistance is a material's tendency to resist the flow of charge (current). So, when we talk about these values, we're really describing the movement of …



            Results by Google, Bing, Duck, Youtube, HotaVN