What is the shape of the magnetic field produced by a straight current carrying wire?
concentric circles
What factors affect magnetic force in current carrying coil?
The magnitude of the force on a current carrying conductor increases when the strength of the magnetic held is increased. The magnitude of the magnetic force also depends on the length of the wire in the magnetic field. The longer the wire in the magnetic field, the larger the force on the wire as shown in Figure.
How will you describe the magnetic field around a straight current carrying coil?
The magnetic field around a current carrying coil is produced due to the current flowing through it. It is uniform throughout. It is just like the magnetic field of a bar magnet. If needles of a magnetic compass are arranged around the coil, they will arrange themselves in North to South direction.
How do you determine the direction of the magnetic field of a coil?
The magnetic field made by a current in a straight wire curls around the wire in a ring. You can find it by pointing your right thumb in the direction of the current in the wire and curling your fingers. Your fingers will be curled in the same direction as the magnetic field around the wire.
What is the most powerful star in the universe?
Meet the Magnetar The Magnetar is a widely accepted variation on a neutron star, and a common explanation for certain phenomena (like soft gamma repeaters and anomalous X-ray pulsars). The magnetar is, at the moment, the most powerful magnetic object known to exist.
What is the shortest magnet in the universe?
Physicists construct world’s smallest magnet composed of only five iron atoms. (Nanowerk News) Physicists at Hamburg University have constructed, atom-by-atom, the world’s smallest stable ferromagnet composed of only five iron atoms (“Current-Driven Spin Dynamics of Artificially Constructed Quantum Magnets”).
What is the tiniest thing in the universe?
Protons and neutrons can be further broken down: they’re both made up of things called “quarks.” As far as we can tell, quarks can’t be broken down into smaller components, making them the smallest things we know of.
What’s the smallest thing in existence?
Electrons