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What is an example of a hydraulic system?
Force that is applied at one point is transmitted to another point using an incompressible fluid. for example a lift cylander on a dump truck
Will the force applied to lift a brick reduce if you use pulleys?
yes, pulley will help IF not the if YOU USE COMBINE TWO OR MORE PULLEYS. Yes, using a pulley or a system of pulleys will reduce the force needed to lift a brick (or anything). HOWEVER the distance that the rope (or whatever effects the pulley system) has to now travel further so that the energy required to lift the brick through an equal height is always the same.
What is the 'Law of Machines'?
Machines which are used to lift a load are governed by the "Law of machines", which states that the effort to be applied on the machine (p) is related to the weight (w) which it can lift as - p = mw + c Where m and c are positive constants which are characteristics of the machine.
When the voltage applied to a circuit increases the power an the also increases?
When you lift the voltage V that goes to a circuit, also the flowing amperage A will go up and so does the power. The lamps will give more light, the equipment will get warmer up to the point where everything goes down. To understand this all you need to know ohm's law. Scroll down to related links and look at "Ohm's Law - Wikipedia". ***************** It has nothing to do with Ohm's Law: that's inductance. P = I E is what answers this question. If I have a motor pulling 15 A @ 110V, that same motor will pull 7.5 A @ 220V (assuming it's capable of that much voltage fluctuation) As voltage rises, current drops for the same net work done. It doesn't climb. That's why heavy appliances are 220 V when outlets are 110 V. That's also why industrial equipment is three-phase vs single-phase residential wiring. ****************
What is the difference between elevator lift and crane lift?
The way they lift the load.
Can a electromagnet lift 3kg if so how much current ant voltage should you pass?
It will depend on the voltage of the electromagnet. If it does not have enough voltage, then it cannot life 3kg.
Can a magnet lift you of the ground?
An electromagnet can, but you have to grasp metal for it to pull on.
How many volts are needed to lift an electromagnet need to lift a car?
The amount of voltage needed to lift a car with an electromagnet depends on several factors. The size of the coil, as well as the amperage will need to be factored in to know how much voltage will be used.
Can an electromagnet lift metal at a water depth of 300 feet?
The magnet on the surface and the metal 300 ft down - no. Lowering the magnet to the metal, then lifting - yes.
What is elecotromagnet?
An electromagnet - is essentially a metal 'core' encased in wire. When power is applied to the wire, the core becomes magnetic - when the power is turned off, the magnetism is lost. Think along the lines of a crane in a scrap-yard. The crane has an electromagnet attached to its lifting arm. The operator switches on the magnet to lift a load of scrap metal, and switches it off to drop the load.
How is electromagnet the same as permanent?
An electromagnet is only magnetic while current is flowing through the coils. A permanent magnet is always magnetic, and does not need electricity. An example of an electromagnet at work is in a metal scrape yard, where a large electromagnet is used by a crane operator to lift ferrous metals into a crusher (scrapped cars, for instance). The metal drops into the crusher when the electricity is switched off by the crane operator. Therefore, they are only really similar when both are magnetised.
Would a powerfull electromagnet lift a needle out of a haystack?
Only if the needle was made of iron or copper
An electromagnet would most likely be used as a what?
A device on the end of a crane to lift cars and junk
What are electromagnets and what are they used for?
It is a steel core with many wraps of fine wire around it. When a DC voltage is applied to each end of the wire to form a circuit the steel core becomes magnetized On application of the voltage, one end of the steel become the north pole and the other end of the steel becomes the south. Reverse the polarity of the DC voltage and the north south poles of the steel also change from end to end.
Why is an electromagnet better that a bar magnet?
Electromagnets can have higher "domain currents" than permanent magnets, and have no non-aligned nor anti-aligned domains like permanent magnets tend to have (or get over time).
How do electromagnets work-3 uses?
An electromagnet is essentially a metal core encased in an electric wire. Without electricity, the 'magnet' doesn't work. Run a current through the wire, and the magnet becomes active. One of the commonest uses - is in a scrap metal yard - where it's used to lift large quantities of scrap onto a conveyor belt for sorting.
What are the ratings and certificates for Lift - 2006 III?
Lift - 2006 III is rated/received certificates of: UK:U (self applied)
