Magnets and Magnetic Fields Questions and Answers 1. What material is not attracted to magnets? A. Iron B. Copper C. Nickel D. Cobalt Correct Answer B. Copper ExplanationCopper is not attracted to magnets. Unlike iron, nickel, and cobalt, copper does not fall under the ...
Basically, bulks of magnetic concentrations are identified according to the magnetic flux of pixels on the magnetograms after they have been smoothed with a boxcar function and corrected by the heliocentric angle of each pixel. The large bulks with strong magnetic fields, at least 15 Mx cm−2...
A factor complicating the picture is the topology of the magnetic fields. Deviating from the idealized picture of the first theoretical models20, in which investigations were restricted to the reconnection of anti-parallel magnetic fields (e.g., the components of the incoming magnetic field lie in...
Metals can be magnetic and non-magnetic. The magnetic ones will produce a field around them, usually described as “ferromagnetic.” These metals are not magnetic by themselves in their natural state. Still, they can be attracted to objects that produce magnetic fields. ...
We introduce commonly-used solar flare terminology using Fig. 1. A theoretical spine and fan field structure is shown in Fig. 1A, B, where the spine fields coming toward the null point (black dot in the middle) diverge out to infinity on the xy-plane to form the fan surface. In the ...
This is required in order to achieve a sufficient level of magnetic fields emanating from the disk and correspondingly, to maximize the read-back signal, while keeping media as close to the head as possible. • Uniform, small, closely spaced and magnetically isolated magnetic grains in order ...
The phrase has been spoofed by computer scientist John McCarthy, to make the opposite point: "As the Chinese say, 1001 words is worth more than a picture." Modern times are considered an age of rationality. As far as the Western, so-called «First World» is concerned, there is ...
Magnetic resonance imaging. For flux densities of up to 0.3 Tesla permanent magnets are superior to superconducting magnets in terms of operating costs and negligible stray fields. • Magnetic bearings. The force between two magnetic components increases as the square of the flux density. Magnetic ...
It was also shown to prompt the formation of a magnetic skyrmion phase in the Fe/Ir(111) system in external magnetic fields at 4.2 K28. In these prior observations, the altered magnetic properties were attributed to absorption of hydrogen into the bulk of the materials. On the other hand...
Quantum circuit theory has become a powerful and indispensable tool to predict the dynamics of superconducting circuits. Surprisingly however, the question of how to properly account for a time-dependent driving via external magnetic fields has hardly been addressed so far. Here, we derive a general...