How does a fuse protect against a short circuit?
When too much current attempts to flow through a wire, the fuse will "pop." The metal conductor inside literally brakes into two pieces. At a specific amperage the fuse "pops", braking the circuit. At that point, there is no more current. So, the fuse prevents the current level from rising above a maximum amperage.
How do you reset the yearly running total to zero on royal 600sc cash register?
I'm assuming by "yearly running total" you mean the electronic journal, which stores the last 5,000+ transactions.
THIS PROCESS CANNOT BE UNDONE!
To reset the electronic journal:
1. Turn the key to the Z position.
2. Using the round numeric keys, enter 280602.
3. Press the AMOUNT TENDERED key.
That should do it.
What is a tower in a computer?
A tower is the "cpu" part of the whole computer system that a user would have setup. Ie there's the monitor (sits on your desk), the speakers, mouse/keyboard, and the "tower" that sits under the desk(usually). It's the part of the computer system that all the cables connect into. It contains the computer case, power supply, motherboard, central processor, hard drives, video cards, etc. That's the tower. Some computers today are built without towers and everything is integrated into one device similar to a laptop but larger and not as mobile.
Can copper metal can weld by TIG welding?
Yes In fact Miller includes a table for Copper TIG welding in its charts. Similar setup to steel but almost double the power. Copper dissipates the heat faster so you need to put it in faster. Local welding supply place carries filler rod (I think it has higher silicon to help flow).
This is from the German User Manual:
http://www.klimafirstklaas.de/fileadmin/Daten_www.klimafirstklaas.de/Klimageraete/Anleitung/Bedienungsanleitung.pdf
Used translate.google.com to make is understandable
Added some possible alternative translation suggestions in [square brackets]
2. Steering: [Installing, operating]
1) Please remove the transparent film of 9V and 1.5V batteries [and install them].
2) Please hold test button for a few seconds, it should now hear a signal to be (test signal). When the signal rings, please release the button (which will sound for about 1-2 times and then stops automatically).
If this test run is completed, this indicates that your wireless smoke detector is working.
3) Networking Smoke Alarms:
Choose one of the Smoke Alarms as a "main smoke alarm." Press please
briefly the LEARN button, the indicator will turn green (There are two LED colors, green or red.).
Press the LEARN button again, and now the previously green indicator turns red
This indicates that the "main smoke alarm" function is now complete.
a) Choose an additional smoke detectors as a "subordinate smoke alarm" and press the LEARN button repeatedly [ continuously??] until the Learn LED lights red. Then press and hold until the "Test" button of the main smoke alarm to give both smoke alarm, the red LED goes out, the light of the Subordinate Detector is now out.
This shows that the networking function is completed. The connect
Application is now complete.
How many smoke alarms can be arbitrarily connected will. [Probably means that Any number of Smoke Detectors can be interconnected]
b) Repeat Section 3. a) for other "subordinate smoke alarms" .
4) Voting Test:
Push the test button of any smoke detector. The alarm will sound and the red LED lights.
All other networked smoke detectors also give an alarm and the green LED indicators for each light up.
The BC-611, or SCR-536, are two of the names/numbers for what is often considered THE FIRST of modern hand held, self-contained, "handie talkie" two-way radios. It came about for use in WW II in 1942, designed by Galvin Mfg., which became the famous police radio maker Motorola. It was the first true hand-held unit to see widespread use.
The term "walkie talkie" was actually first applied to various back-pack carried radios, some weighing in at 38 lbs (see SCR-300)! Both the handheld BC-611 and the backpack SCR-300 are seen in many WW II or Korean war movies, though the two would not operate with each other.
The BC-611 was a 5-tube transceiver that operated in the low shortwave frequency range of 3.5 to 6.0 MHz, AM mode (like a CB radio), on only one pre-set channel of 50 possible crystal controlled channels. Output power was about 360 mW (0.36 Watt) and worked up to about 1 mile over land. They could work about 3 miles from the beach to ships offshore for calling Naval Gunfire support. The BC-611 weighed about 4.65 lbs. with the batteries! This model was very square and boxy looking, with separate earpiece and microphone that protruded from the case, looking very much like an oversized, straight, two-handed, old telephone handset. A later, smaller, "rounded edge" (without protruding ear or mouth pieces) update, the PRC-6 "Banana", was on VHF and not compatible with the BC-611.
One unique feature of the BC-611 was that the antenna itself was used to turn it ON when it was pulled up to use it, and the radio was turned OFF when the antenna was pushed all the way down. A cap on top of the radio (often seen as a second tall piece on top) was used to screw down over the antenna for storage. This ensured the antenna stayed down, keeping the radio from accidentally draining the batteries.
This information was summarized from multiple Internet information websites.
How do you energize a furnace relay?
BY applying a voltage to the relay's coil connections. Could be DC or AC at a specific voltage. If it's DC, watch the polarity. If it's AC, polarity doesn't matter. HOWEVER, VOLTAGE DOES MATTER, so don't go applying 120 VAC to a relay when it needs only 16 VAC, and DON"T APPLY AC to a DC relay. Could burn up quite nicely if you're not careful.
Fuses have two basic ratings. The first is current rating. The current rating is the amount of current that a fuse will safely pass before blowing. When the current flow through a fuse exceeds its rating, it opens up and breaks the circuit. If a fuse has a 5 A rating, it will open as current flow through it exceeds 5 amps. It is useful to note that there are some fuses that are designated as time delay. These fuses will sustain current in excess to their current rating for a short period before blowing. The fuse that blows immediately when its rated current is exceeded is an instantaneous fuse. The other way fuses are rated is by voltage. So when selecting a fuse, be sure that both the current and voltage rating are suitable for the application.
Fuse rating is the permissible minimal current to pass in the fuse element,without causing the fuse to blow or melt.
What is the difference between telephone and cellphone?
Usually - telephone refers to a 'fixed-line' telephone (like the one you have at home). The term cellphone is used to describe a mobile phone - ie - one you can carry with you wherever you go.
What is the difference between a transmission grid and an electricity grid?
The terms transmission grid and electrical grid are somewhat interchangeable. The electrical grid, or power grid, is the network used to get electric power from where it is generated to all the places that use it. The one difference might be that a transmission line or grid might be thought of as the network of high voltage long distance lines. These are used to move large amounts of power with minimal loss through the use of extremely high voltages. These long distance lines connect generation facilities with substations, and it is at the substation that the voltages are stepped down, and that power is then put on the electrical grid.
A heater draws 8.70 amps on a 110 volt line What is its wattage rating?
Power = Voltage x Current
P=V.I
Power (in Watts) = 110V x 8.70A = 957W (Appx. 1kW) - Neeraj Sharma
With the skype program downloaded, find the contact you want to call, right click on their name, and click "call" it should be the first item that appears on the list.If you are trying to call a phone, click "view" at the top, then click "call phones" and dial the number you are trying to reach.
How much does an alphasmart cost?
The Company AphaSmart is now known as Neo Direct. From their website they now sell 3 models of what looks like a modern version of an electric typewriter. Prices vary but US$69.00 seems to be an accurate average.
What year did cell phone text messaging start?
The year was 1990's when the first text message was ever sent out.
Explain the differences between a dry cell and an accumulator?
A dry cell is a chemical device that produces electricity by a chemical reaction contained in a sealed container. Its contents are not liquid, hence the name "dry" cell. An example is a common flashlight battery or "D-Cell" or "AA-Cell", etc. Those are examples of a carbon rod enclosed in a zinc case and separated from the case and surrounded by a damp mixture of manganese dioxide powder. It is a "Primary Cell" meaning it cannot be recharged once it is depleted. An accumulator, once known as a condenser, is now known by the name "capacitor". It has no chemistry, at least not to react to form electricity. The simplest types are two metal plates separated by a "dielectric" or "insulator". When one plate is connected to the plus side of a battery or power supply, and the other plate is connected to the negative side of the battery or power supply, the capacitor charges up to whatever the battery voltage is, e.g., 1.5 volts DC. When the battery is removed the capacitor stores that charge and holds it for some time (it eventually leaks off). While the capacitor is charged, i.e., has voltage across its two plates or two terminals, it can act as a source of power, just like a battery. However as soon as some current is withdrawn from the capacitor, its voltage decreases, leading to lower capacity to deliver current until eventually its voltage goes to zero. A battery or dry cell can deliver current at a slowly decreasing voltage for an hour or more, depending on the load it is driving. An accumulator or capacitor might deliver current only for a fraction of a second. It can be discharged very quickly since it doesn't store that much charge to begin with, and has no chemical reaction to continue producing electricity.
How do you fix retractable cord of a headphone?
I just tried to fix my retractable cord, but it doesn't "lock" and "unlock" like it did before. But it does wind up. Inside was a spiral peice of medal, I just wound it up and then had to manure it around and around like a wind-up toy, still keeping the cord unwound. It was really hard. Then I put it back together and it immediately wound the cord up. It is like a yo-yo again, but like I said, it doesn't stay unwound and locked, it alwys will wind up.
Lead screws (always pronounced "LEED," as in the present tense of the verb "to lead") are used in mechanical transmission systems to convert rotary motion to controlled linear motion. A common example is in the machinist's screw-cutting lathe. Here a motor turns the lathe's headstock to rotate the piece being machined. A train of gears connected to the headstock turns the lead screw which is usually as long as the entire lathe. As the lead screw turns it propels the cutting tool along the workpiece at a rate directly linked to the rotation of the headstock.
Scroll down to related links and look at "Electricity and Electric Charge - Electrical voltage V, amperage I, resistivity R, impedance Z, wattage P".
What is the calibration of an ammeter?
calibration of an ammeter is done in order to standardise the instrument,and rectify the errors present in the instrument, if any.
What is the pass code for a Plantronics 2xx bluetooth earpiece?
The passcode for the Plantronics 2xx bluetooth is: 0000
Is there more racism now than fifty years ago?
No. It simply gets more 'press' because it is less acceptable and so is more often a topic of discussion.
If by 'More racism' you mean more people feel that other races are inferior, there's probably less. It's now far more polarized, and yes, is more newsworthy.
In 1876, Alaxander Graham Bell produced the first loud speaker as part of his invention of the telephone.