EARTH SCIENCE
MAGNETISM
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
The one supplying a residential area.
|
|
|
The one near a power distribution center.
|
|
|
The one near a power plant.
|
|
|
The one along a highway.
|
Detailed explanation-1: -Record Bitter magnets The strongest continuous manmade magnetic field, 45 T, was produced by a hybrid device, consisting of a Bitter magnet inside a superconducting magnet. The resistive magnet produces 33.5 T and the superconducting coil produces the remaining 11.5 T.
Detailed explanation-2: -The induced voltage can be increased by winding the wire into a coil because the field lines intersect the circuit multiple times. The direction of the magnetic field produced by a coil can be determined by the right hand grip rule.
Detailed explanation-3: -The magnetic field around a magnet is the strongest at the poles.
Detailed explanation-4: -The thickness of the wire affects the strength of the electromagnet because the resistance of the circuit is inversely proportional to the cross-sectional area. So if the current will drop, then more current will flow in the electromagnet. Thus, the thickness of the wire increases the strength of the electromagnet.