A magnetic field is avector, which means it has magnitude and direction. Ifelectric currentflows in a straight line, the right hand rule shows the direction invisible magnetic field lines flow around a wire. If you imagine gripping the wire with your right hand with your thumb pointing in th...
apeople behave in the way that they do are starting to believe it. 人们表现就象他们开始相信它的。[translate] aMore or less of shipment allowed at the sellers’ option 或多或少发货允许在卖主’选择[translate] athe magnetic field around one loop of wire 磁场在导线附近一个圈[translate]...
百度试题 结果1 题目When an electric current___through a wire, a magnetic field appears around 相关知识点: 试题来源: 解析 flows null 反馈 收藏
The magnetic field is the region around a magnet where the magnetic forces are observable. It is defined by the presence of magnetic force on moving charges, which are experienced as attraction or repulsion. This field can be visually represented by field lines emanating from the north pole to...
aThe current from the battery is flowing through the wire on both sides of the wire form. This creates a magnetic field around the wire. This field interacts with the field from the cube magnet and the disks. The wire's field creates a force at right angles to the field from the magnet...
Magnetic Field Sensors Magnetic field sensors are devices that detect and measure magnetic fields around permanent magnets, current conductors, and electrical devices. As the world becomes increasingly electrified, demand for improved positional and current sensing has grown in turn. ADI MagIC+™ break...
we can say that at the centre of the circular loop, magnetic field lines become straight lines. At every point of a loop, the concentric circles representing the magnetic field around it would become larger and larger as we move away from the loop. The strength increases as we go closer ...
The direction of the magnetic field is perpendicular to the wire and is in the direction the fingers of the right hand would curl if wrapped around the wire with the thumb in the direction of the current. The strength of the magnetic field depends on the current I in the wire and d, ...
The electric and magnetic field structures around a semi-infinite thin-wire antenna vertically placed above a perfectly conducting ground plane are investigated when the antenna is supporting two different types of sources. It is shown that when the wire is carrying a uniform line charge, the ...
Around an alternating current or a fluctuating direct current, the magnetic field is continuously changing its magnitude and direction. magnets and their associated magnetic field linesA permanent magnet (such as a bar or disk magnet) possesses a magnetic field by virtue of the alignment of all ...