Ammeters are connected in series with the circuit under test. Even the clamp on ammeter is a series device, taking advantage of the fact that the conductor is a half turn transformer winding that you can measure the current through.
Ammeters are connected in series with the load under test. This requires the load be disconnected from the source, and the ammeter placed in circuit. Voltmeters are connected in parallel with the load under test. This does not require any circuit changes. Sorry, but WikiAnswers does not support illustrations.
First be sure to have it on, And on the 12volt setting (if selectable) Be sure to get a good grounding point, I.E, door hinge, Seat bolt, Batt ground, Then just touch the other end (Red) to the point your testing volts. It should then give you your reading, Just be sure not to confuse the wires, Damage your testing unit or worse, Short cars wiring. Hope that helps!Answer 2:An ammeter needs to be connected in series with your circuit, (that is, all current must "check in" at the ammeter). Many ammeters are called multimeters because they are both ammeters (measuring current) and voltmeters (measuring voltage). many people make the mistake of setting the multimeter up such that it is reading voltage when they desire to read current.When a voltmeter is hooked up in series with a circuit, the fuse within the voltmeter may break, sufficiently pissing off any lab instructor you may be working under.
Yes. There is a sign of Speaker/sound on a side DMM. Move the knob of DMM on that symbol. Now connect one prob of the DMM on one circuit element & one under that(If you are designing the circuit on PCB or plain board). If a sound come out of that then it means that your circuit element & the portion below that are properly connected.
In a direct current (DC) circuit, a capacitor will eventually charge up and act as an open circuit, meaning it will not allow current to flow after reaching full charge. As a result, the impedance of a resistor-capacitor (C-R) circuit under DC conditions is simply the resistance value. Therefore, the impedance of the given C-R circuit with a resistance of 20 ohms and a capacitance of 2 microfarads is 20 ohms.
The following are all common digital electronic logic gate types: AND OR NAND NOR XOR NOT There 'truth tables' and therefore their corresponding functions can be found on wikipedia under articles entitled with their respective names. NAND is a very common gate in commercial digital electronics as all other gates can be imitated by connected the correct number of NAND gates in the correct way. These can then be placed on one IC (Integrated Circuit) chip which reduces cost massively.
Ammeters are connected in series with the load under test. This requires the load be disconnected from the source, and the ammeter placed in circuit. Voltmeters are connected in parallel with the load under test. This does not require any circuit changes. Sorry, but WikiAnswers does not support illustrations.
Current "flows" through the circuit, through the conductor. Hence an ammeter is in series so that the current under measurement also flow through the meter and measured.
An ammeter is connected in series. A voltmeter is connected in parallel. ammeter should always be connected in series instead of parallel becoz it is a low resistance device and we know that resistance is inversly proportional to current so more current will pass through it and if it is connected in parallel than it may get damaged
No it does not. A volt meter only reads the current that is passing through it.AnswerAll instruments draw some (albeit tiny) current from the circuit under test in order to operate. So, if this is what you mean by 'taking power from circuit', then the answer is yes, it does.Instruments also change the normal resistance of the circuit being tested -for example, ammeters increase the resistance of the circuit into which they are connected, while voltmeters decrease the circuit resistance across which they are connected. So adding a voltmeter (or an ammeter) to a circuit affects the operation of that circuit to some degree. To minimise this interference, it is important that an ammeter's internal resistance is very much lower than the circuit's resistance, and a voltmeter's resistance is very much higher than the circuit's resistance.
Just like voltmeters, ammeters tend to influence the amount of current in the circuits they're connected to. However, unlike the ideal voltmeter, the ideal ammeter has zero internal resistance, so as to drop as little voltage as possible as electrons flow through it. Note that this ideal resistance value is exactly opposite as that of a voltmeter. With voltmeters, we want as little current to be drawn as possible from the circuit under test. With ammeters, we want as little voltage to be dropped as possible while conducting current.
An Ammeter connects a low impedance on the test points, so the equivalent of that is a "short circuit" between the test points. This is done to avoid a drop of current on the tested circuit. A Voltmeter connects a high impedance on the test points, so the equivalent of that is a "open circuit" between the test points. This is done to avoid a drop of voltage on the tested circuit. --------- In terms of external connections Ammeter (used to measure current) is connected in series of the circuit (through which the current flow need to be measured) and voltmeter (used to measure voltage) is connected in parallel to points in circuit (across which voltage needs to be measured).
In the reverse-bias condition, the negative terminal of the source is connected to the anode side of the circuit and the positive terminal is connected to the cathode side.
The radio fuse is connected to the horn circuit, under the hood left/passenger side (15 Amp fuse)
Electricity flows where there is a potential difference and some means of discharging that difference. A circuit is the loop of the thing causing the potential difference and the components that allow it to discharge. What seems to be confusing you is that the power source isn't always included in a circuit diagram. If you think in terms of a lighting circuit, the light comes on when the switch is closed. The part of the circuit inside your house only has the mains supply, some power switchgear, the light switch and the light. However, the circuit continues back through the supply cables to the generating station. Break the circuit at any point, in your house, under the street or a wire in the generator, and out goes the light.
A reactor used in alternating-current power systems for protection against excessively large currents under short-circuit or transient conditions; it consists of coils of heavy insulated cable either cast in concrete columns or supported in rigid frames and mounted on insulators. Also known as current-limiting reactor.
A load of any type,,,inductive or capacitive , would effect the circuit even if THOSE "loads" had no load on them. They would still have a load effect on the circuit they are connected to.Answer'Under no-load conditions' means that no load is connected to the supply. So your question doesn't make sense!
First be sure to have it on, And on the 12volt setting (if selectable) Be sure to get a good grounding point, I.E, door hinge, Seat bolt, Batt ground, Then just touch the other end (Red) to the point your testing volts. It should then give you your reading, Just be sure not to confuse the wires, Damage your testing unit or worse, Short cars wiring. Hope that helps!Answer 2:An ammeter needs to be connected in series with your circuit, (that is, all current must "check in" at the ammeter). Many ammeters are called multimeters because they are both ammeters (measuring current) and voltmeters (measuring voltage). many people make the mistake of setting the multimeter up such that it is reading voltage when they desire to read current.When a voltmeter is hooked up in series with a circuit, the fuse within the voltmeter may break, sufficiently pissing off any lab instructor you may be working under.