How to create a magnetic field. Why does electricity create a magnetic field? What creates a magnetic field? How is the strength of the magnetic field determined? How do electrons account for magnetism in rare Earth magnets? How do you measure a magnetic field?
Measuring the strength of magnets1. Hall-Effect DevicesA Hall-effect device is a piece of material which is affected by a magnetic field. By passing a constant amount of current through it in one direction, and by placing it in a magnetic field in another direction, we can measure a ...
Metals are the most common choices to manufacture magnets. Although some are made from simple metals, combinations of metals — called alloys — produce magnets of different strengths. For example: Ferrites or ceramic magnets: These are like those used in refrigerator magnets and elementary-school ...
The strength of a magnet in an MRI system is rated using a unit of measure known as a tesla. Another unit of measure commonly used with magnets is the gauss (1 tesla = 10,000 gauss). The magnets in use today in MRI systems create a magnetic field of 1.5-tesla to 7.0-tesla, or ...
Attach a magnet to one end of the rubber band and some washers to the other end of the ruler. Position the middle of the ruler on the balancer. STEP 3 Hold another magnet above the first. Lower it until the ruler tips over. Measure its height above the table. The higher it is when...
Let's say that you turn on the space heater and then look at the power meter outside. The meter's purpose is to measure the amount of electricity flowing into your house so that the power company can bill you for it. Let's assume -- we know it's unlikely -- that nothing else in...
One way to measure and compare a magnet's "strength" is to see how many staples it can pick up. What is the difference between an iron and an aluminum core for the magnet? For example, roll up some aluminum foil tightly and use it as the core for your magnet in place of the nail...
One way to measure and compare a magnet's "strength" is to see how many staples it can pick up. What is the difference between an iron and an aluminum core for the magnet? For example, roll up some aluminum foil tightly and use it as the core for your magnet in place of the nail...
Measurable results and insights: Email marketing provides comprehensive analytics, allowing you to track key metrics such as open rates, click-through rates, and conversion rates to measure the effectiveness of your funnel Higher return on investment (ROI): The targeted nature of email marketing often...
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 ...