File name: What is voltage pdf
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We know that our power supply has an output of 9/12VDC, so we first need to set the multimeter’s scale to Volts (DC not AC) and then to a maximum amplitude ofV a to point b. To understand this Electrical Charge. Hydraulic AnalogyThe water pressure at the end of the hose is equivalent to the voltage or potential difference in an electric circuit Charge. There is a hose at the bottom of the tank as shown in the below image. Your lightbulb, your stereo, your phone, etc., are all harnessing the movement of the electrons in order to do work. Electrons create charge, which we can harness to do work. We say a proton has a positive charge, and an electron has a negative charge. Voltage or “potential electrical difference” is a comparison of energy that a charge experiences between two locations in space. Voltage, measured in Voltage is the driving potential Units: amperes or amps (A) –coulombs per second (C/s) A rate of charge flow𝐴𝐴=𝐶𝐶 𝑠𝑠 Current wants to flow from high to low potential Analogous Voltage: The energy-transfering capability of a unit electric charge when it moves from one point to another point in an electric field is said to be the potential difference or A prominent application of the notion of voltage is in circuit analysis, where prescrip-tions exist for the “voltage drop” across various circuit elements (secs.), and where WHAT IS VOLTAGE? Then we say point b is at a higher electric potential than point a. The difference in electric potential between two points is called voltage. They all operate using the same basic power source: the movement of electrons Work and Potential Energy (U) Consider a water tank placed at a certain height above the ground. Electricity is the movement of electrons. You are already familiar with the idea of from chemistry or physics. charge. Electric Field The multimeter has two test probesone red (for positive) and one black (for negative). Charge is measured in units called Coulombs, abbreviated C. proton = x C. electron = x C. C is a whole lot of protons! x protons inC.
