## What are the symbols on a mulitmeter electricity storage association

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A – usually Amps t gasthuys; the full term is Ampere and it is a measurement of the current flowing through the circuit. You usually measure amps by hooking the meter into the circuit you are measuring, in series. Make absolutely sure that the meter is designed and set up to handle the measurement you are attempting to take. Measuring a mains plug usually requires a very expensive multimeter, while your garden-variety electronics multimeter would be fried.

mA – Milliamps; 1/1000 of an amp. Electronic circuits usually carry mA of current, while mains plugs carry full amps. To reinforce the point; using a meter designed for milliamps to check things like home electrical wiring will send many thousands of times more current through the meter than it is designed to handle, and you will fry your meter.

V/mV – Voltage. This is a measure of electrical potential, or the difference in the charge carried by the circuit at different points in the circuit. The most practical use of voltage metering is to detect the usage of electrical power by different nodes in the grade 6 electricity experiments electrical circuit. Voltage metering is generally done by placing the meter in parallel with two points in the electrical circuit. DO NOT connect a meter set gasbuddy up to check volts in series with an electrical circuit; again, you’ll fry your meter.

~/- – When you see a wavy line used with amp or voltage settings, that means the setting is for use in an A/C circuit. Most simple household electrical devices like lamps, refrigerators, washers/dryers, etc use alternating current, where the current passes through the circuit in one way, then the other, and this changes very rapidly. Analog audio signals are also represented as A/C. By contrast, a solid straight line, usually with a dashed line underneath it, is a DC circuit. Most electronics use direct current, where the current flows in only one direction.

Omega symbol (horseshoe) – Resistance, measured in ohms. Resistance is simply the property of a circuit to inhibit the flow of electrons through it in general. Impedance, in simplest terms, is resistance of a circuit to alternating current; simple resistance will provide impedance electricity outage sacramento, but there are other properties of A/C circuits that impede the flow of electricity. Remember the formula I=V/R; Current I, in amperes, flowing through a simple circuit is equal to the circuit’s voltage, in volts, divided by its resistance in ohms.

W = Watts. The watt is the unit of electrical power, or a circuit’s ability to do work. 1W = 1V x 1A. A 120V, 10A household electrical circuit (common in the U.S. for most non-appliance circuits) can supply 1200W of electrical power. Power over a given amount of time equals the work done by electricity, commonly measured in the U.S. in kW/h, the equivalent of 1000W of power being used for m power electricity one hour. Wattage can be confusing, especially in audio equipment, because of the various ways it can be measured or estimated.

pF/uF/mF/F, usually with a -|(- symbol – Capacitance, in pico/micro/milli/farads. Capacitance is the property of an electrical component to soak up electrons when placed in a circuit. In an A/C circuit, capacitance increases impedance. Capacitors, or electrical components designed to soak up current, are used heavily electricity in human body wiki in electronics to provide a constant flow of electricity, and in audio circuits for an interesting property; the impedance a capacitor provides to a circuit depends on the frequency of the current direction-switching; high frequencies have low impedance through a capacitor, while low frequencies have a high impedance. EQ/tone controls and crossovers make use of this characteristic.

-|- symbol – Diode. A diode is simply an electrical node with a defined input and output. Most diodes used in electrical circuits have a one-way property; when placed in an A/C circuit, they only allow current to flow in one direction, presenting near-infinite resistance to flow in the other direction. There are numerous applications for diodes in electronics hair electricity song. Multimeters for electronics use commonly include a diode checking mode that will determine that a diode does inhibit flow properly, and in which direction the flow is inhibited.