Step 1:Identify the direction of the magnetic field, {eq}\vec{B} {/eq}, and of propagation, {eq}\vec{v} {/eq} Step 2:Using your right hand, extend your thumb and pointer finger in an "L"-shape, and then extend your middle finger to point outward from the base of...
Birds communicate by sound as well as by sight, just like we do. They make a lot of noise and their songs and calls all mean something. On the most basic level sounds can help you find birds by revealing their presence and telling you what direction to look. Just like seeing,【4】...
No, the magnetic field cannot be negative. It is a vector quantity and is always directed either towards or away from the wire, depending on the direction of the current. However, the magnitude of the magnetic field can be zero if the distance from the wire is infinite.Post...
A compass online uses your device’s built-in sensors to detect the Earth’s magnetic field. When you open the tool, it reads this data and calculates the direction you’re facing. Just like a traditional compass, but instead of a spinning needle, the online version displays the direction ...
aThe electromagnetic coupling regulator controller can be ensure the generator output the stable voltage by changing the quantity and direction of the electromagnetic winding excitation current to adjust the air gap size in the magnetic field 电磁式联结管理者控制器可以是保证发电器通过改变电磁式绕励磁...
afirst determine the operating current in one direction and the magnetic field direction is positive 首先确定工作电流在一个方向,并且磁场方向是正面的[translate] acut u 切开[translate] aNo, the Ops status updates cannot be applied to a consignment until the details are entered into our system and...
C.Animals' Sense of DirectionD.Animals' Sense of Magnetic Field答案(1)推理判断题。本文是围绕"动物的方向感"展开,可以在科学杂志上看到。故选D。(2)细节理解题。根据第二段"A certain kind of ants,for example,can count their steps to avoid getting lost."(例如,有一种蚂蚁可以计算...
C.Animals Sense of Direction动物的方向感 D.Some animals can sense the earth s magnetic field(磁场)”有些动物能感觉到地球的磁场。 Scientific research shows that they are born with certain unusual abilities for direction . A certain kind of ants for example can cou...
• Avoid magnetic interference near your device as this can affect the built-in compass and give a false direction. Moving the device around away from interference can help it pick up the Earth’s magnetic field and determine which way is North. If the device determines it needs to recalibr...
afirst determine the operating current in one direction and the magnetic field direction is positive 首先确定工作电流在一个方向,并且磁场方向是正面的[translate] aNo, the Ops status updates cannot be applied to a consignment until the details are entered into our system and the items checked through...