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There are many ways in which the resistance influences the extension cord. Tension could cause it to break for example.
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Why some appliances perform quite when long extension cord are used?
An appliance which does not use much current will perform satisfactorily with a long extension cord. Any device which uses a lot of power (space heater, large power tools) will not perform well on a long ext cord unless the cord is large enough and rated to carry the required power.
Some electrical appliances perform quite unsatisfactory when long extension cords are used Why?
Wire has resistance to current flow. The more wire the more resistance.
What force slows objects moving through the air?
Air resistance
Is the resistance of a thermistor measured in degrees celsius?
resistance is measured in 'ohms'. A thermistor basically tells u how temperature affects resistance in a circuit, generally the higher the temperature (degrees) the less resistance
What are the Factors that determine resistance value of electrical material?
The factors that determine resistance are thickness, length, temperature, and the conductivity of the resistance of an object
Which wire has greater resistance a light plugged into an extension cord or a light plugged directly into a wall?
Light and an extension cord. The extension cord will act as an added resistor in series. The more cord you add will only increase the overall resistance from the wall outlet. If you use a high gage extension cord, this will help reduce the resistance. But any cord will add resistance. If the gage is low, then the cord will actually heat up and you will be able to feel the heat. That is due to the resistance within the cord. Check out my sketch of how I perceive your Q: Chord + drop light w/chord ]---------------(]--------O Versus drop light w/chord ]--------O
The resistance of an extension cord varies directly with the length of the cord?
This means that as the length of the extension cord increases, the resistance also increases. Similarly, if the length decreases, the resistance will decrease as well. This relationship is described by the equation R = kL, where R is the resistance, L is the length, and k is a constant.
Does a long extension cord draw more power than a short extension cord?
No. However, a longer extension cord has higher resistance for a given wire gauge or size compared to a short extension cord and the voltage at the load device may drop so low that it doesn't work properly. This may also be accompanied by a noticeable rise in the temperature of the extension cord. As a rule, use the shortest extension cord that will get the job done. If the extension cord must be long, use one that has heavy gauge wire to minimize voltage drop at the load.
Does an extension cord use power if nothing is plugged into the other end?
If there is no load plugged into the cord there will be no power consumed. The only time the resistance of the cord will come into effect is when the circuit becomes energized through the load plugged into the end of the cord.
Is it acceptable by OSHA to plug an extension cord into another extension cord-?
You can plug an extension cord into another extension cord. A extension cord is to help make doing something easier.
When Adding an extension cord to an electrical device what are you increasing?
resistance. and also the posibility for a problem,dont use extension cords for any permanant wiring
Extension Cord?
form_title= Extension Cord form_header= Install extension cords in your office. What size extension cord do you need?*= _ [50] What color extension cord do you need?*= _ [50] Do you need a 3 prong extension cord?*= () Yes () No
Is it harmful to plug an extension cord into another on identical to it?
Not in general. You can buy extension cords in a variety of lengths. However, the longer the cord the more the resistance and the bigger the voltage drop across the length of the cord. If you were using the cord outdoors and the junction was on the ground it is possible for moisture to cause a short at the junction.
Can you use an extension cord for a window air conditioner?
Yes, but be sure it is of sufficient rating to handle the current. Air conditioners typically use a large amount of electrical current, and so the ampere rating of the cord needs to be high enough not to cause appreciable heating or failure of the cord. Also, the longer the extension cord, the heavier its gauge needs to be, as its resistance goes up in direct relationship to its length. If the resistance of the extension cord gets too high, the compressor motor will see insufficient voltage to start up reliably and will run poorly or not at all. Look for an "appliance extension cord" when you go to the store. They are easily distinguishable from ordinary lamp extension cords by their heavier weight cable and they're almost always equipped with a 3-prong plug and receptacle. Keep the extension cord run from the outlet to the air conditioner as short as practical -- less than 12 ft (4 meters), if you can.
Can you use an extension cord with a window air conditioner unit?
Yes, but be sure it is of sufficient rating to handle the current. Air conditioners typically use a large amount of electrical current, and so the ampere rating of the cord needs to be high enough not to cause appreciable heating or failure of the cord. Also, the longer the extension cord, the heavier its gauge needs to be, as its resistance goes up in direct relationship to its length. If the resistance of the extension cord gets too high, the compressor motor will see insufficient voltage to start up reliably and will run poorly or not at all. Look for an "appliance extension cord" when you go to the store. They are easily distinguishable from ordinary lamp extension cords by their heavier weight cable and they're almost always equipped with a 3-prong plug and receptacle. Keep the extension cord run from the outlet to the air conditioner as short as practical -- less than 12 ft (4 meters), if you can.
Why some of the appliances perform quite unsatisfactory when long extension cords are used?
Too much voltage dropped in the resistance of the extension cord is why some appliances become unsatisfactory over time.
What kind of extension cord can be used for outdoors?
normaly we can use water proof extension cord
