Magnetizng the Rod Determine the poles on your magnet. On most magnets, this should be shown with an N on one end and an S on the other. Decide which pole you want to use to create your magnet. This is purely preference and will not affect the strength of your magnet. Position the ...
To measure the speed of a car, one must be able to measure the rotational speed of either the wheels or the transmission and send that information to some sort of gauge. In most cars, measurement takes place in the transmission. And the job of measuring the rotational speed generated by ...
The resulting magnet's strength depends on the amount of force used to move the domains. Its permanence, or retentivity, depends on how difficult it was to encourage the domains to align. Materials that are hard to magnetize generally retain their magnetism for longer periods, while materials th...
Calculate the inductance of a coil as an educational exercise or if you expect someday to build a radio from spare parts. The coils you buy will have the henrys (measure of inductance) clearly marked. Knowing the formula will help you understand the behavior of coils, and there is no bet...
the metal as if it were a permanent magnet. electromagnets are useful because you can turn the magnet on and off by completing or interrupting the circuit, respectively. contents electromagnet vs. permanent magnet key figures in the history of electromagnets the strength of an electromagnet putting...
metal as if it were a permanent magnet. electromagnets are useful because you can turn the magnet on and off by completing or interrupting the circuit, respectively. contents electromagnet vs. permanent magnet key figures in the history of electromagnets the strength of an electromagnet putting the...
How to Understand kW vs. Amps Kilowatts and amps are two different things. Kilowatts are a measure of power, whereas amps are a measure of electrical current. You can convert from kW to amps by using this formula: amps = kilowatts x 1000 ÷ volts. What Are Some Commonly Used Voltages...
we imagine our solo gravity field has a strength of 1.5, and the three cancel, creating no appreciable force. But with a fully performing magnet, the magnetic field is either at 0 or 1, which makes the total E/M repulsion either 1 or 2. If the solo gravity field is constant at 1.5...
How to measure magnetic field strength of a magnet. Why is the magnetic force perpendicular to the magnetic field? What are two ways that magnetism is produced? How do neutral particles move in a magnetic field? Is electromagnetism the same as electricity and magnetism? How to increase magnetic...
How to block a magnetic field? Is the Earth's magnetic field moving? How to measure magnetic field strength of permanent magnet. What causes a magnetic field? Does Earth have a magnetic field? How do electrons create a magnetic field?