![]() The names and the signs are all relative, and sometimes confusing if one forgets what the reference or ground point is. means a band of operating voltages as marked on an incandescent lamp, indicating that the lamp is designed to operate at any voltage. If one further defines the charge at point A to be negative charge, then a positive VAB means point B is positively charged, by definition. The systems are getting smaller and using lower voltages. Therefore, for very small signals (in the same order as the V IO), the comparator toggles at an undesired value or does not toggle at all. Input offset voltage limits the resolution of comparators. Volt-amperes or apparent power, is the product voltage V and amperes A - that is, the two measures are multiplied together. This is the advantage of defining a common point, like A, as ground and making all voltage measurements with respect to it. The voltage of an electrical current is its force measured in volts. The input offset voltage (VIO) can be defined as the differential input voltage to apply in order to be at the toggling level. You can even determine the voltage between B and C without measuring it: VBC = VAC – VAB. ![]() Voltage is measured in units of volts using a voltmeter the symbol for volts is V. Specifically, voltage is measured as the difference in electrical energy between two points in a circuit. It is what pushes the current through the circuit to a device. However, if you make a second measurement between A and another point C, you can at least tell if B and C have the same charge by the relative sign of the two voltages, VAB and VAC to your common point A. An electronics designation that refers to voltage from a power supply connected to the 'collector' terminal of a bipolar transistor. Voltage is a measure of how strong the current is in a circuit. If VAB is positive you know the two points are oppositely charged, but you cannot tell if point A has positive charge and point B negative, or visa versa. Similarly, the voltage between two points A and B, VAB, is relative. THIS DEFINITION IS FOR PERSONAL USE ONLY. The names are relative someone has to define which one is “ positive“. The common voltage of an AC power line is 120 volts of alternating current. The meaning of VOLTAGE is electric potential or potential difference expressed in volts. ![]() ![]() Like charges exert a repulsive force on each other ![]()
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