Name two things that affect the strength of an electromagnet?

Answer 1

the shape of the core and the distance between the poles affect the strength of the electromagnet

Answer 2

First off, the two main factors are the power source and the number of windings in your Electromagnet. Higher wattage input can produce a stronger magnetic field. More windings will also increase the strength of the field. Type and gauge of the conductor will also affect performance. More factors to consider: The diameter of the coils, and the inductor core material. Make a simple ring of wire, maybe a dozen windings, attach a power source, and you will have an electromagnet (though not very useful in that form). Wrapping a wire around a large iron nail and attaching a power source will prove more effective. In the first example the core material is natural air. Air does not induce well, and therefore does not create a good magnet. In the second example, the iron core (the nail) through induction, greatly increases the magnetic field. The iron can also become temporarly magnetized through this process. Note: Do NOT use household line voltage, as this may be too powerful and cause injury.

Answer 3

There are several factors which affect the strength of an electromagnet. Some common factors are-

1. The wire used- High resistance wire will cause less current to flow and hence a weak field will be obtained.

2. The core- The most important part is the core. An air core magnet will have less field strength than an iron core.A core made of iron strips rather than an iron block will have greater field strength.

3. Eddy currents- These are a major reason for loss in effectiveness of an electromagnets. Making a core from strips rather than use a solid block reduces these currents and increases field strength.

Finally there are many other factors like wire gauge used and the material and cooling etc. Studying self inductance and mutual inductance as well as asking your physics teacher or college student will greatly help you.

Answer 4

An electromagnet is coil of wire with a current running through it. The size of the coil of and the amount of current (AC/DC) you inject through the coils, determines the strength of the magnetic force.

Answer 5

The number of turns in the wire coil and the amount of current flowing through the wire are two factors that affect the strength of an electromagnet. Increasing either of these factors will increase the magnetic field produced by the electromagnet.

Answer 6

1. The number and intensity of the windings

2. The amount of current you can get through the coil.

3. The permeabilty of the core material.