If shrunken down to micron size, a compass needle could wobble. (Courtesy: iStockphoto/tobias machhaus) A tiny magnetic needle just 10 μm long could be used to create a magnetic-field sensor that – if ...

A magnetic field is invisible, but it can be detected using a magnetic compass. A compass contains a small bar magnet on a pivot so that it can rotate. The compass needle points in the direction of ...

Your career begins here! At Jagranjosh.com, our vision is to enable the youth to make informed life decisions, and our mission is to create credible and actionable ...

How can a tiny magnet help you if you're lost in the woods? When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. If you're lost in the woods, your ...

A compass needle is essentially a thin bar magnet. If it were free to move in all three dimensions, a magnet would line up along any local magnetic field line. Field lines are graphical ...

A compass is a navigational tool that helps people find their direction using the earth's magnetic field. It contains a magnet that aligns itself with the earth's north pole to indicate the direction.