How solenoid is equivalent to a bar magnet?
How solenoid is equivalent to a bar magnet?
A solenoid is a long coil of circular loops of insulated copper wire. Magnetic field lines are produced around the solenoid when a current is allowed to flow through it. The magnetic field produced by it is similar to the magnetic field of a bar magnet.
What is solenoid compare the magnetic field produced by a solenoid?
A solenoid is a long straight insulated wire, such as a copper coil, often wrapped around a cylinder-shaped body. The diameter of the solenoid is lesser than its length. It produces a magnetic field when electric current is passed through it.
Is solenoid a temporary magnet?
A solenoid is used as a temporary magnet (an electromagnet).
What do the compasses in the drawing of the single magnet indicate?
The compasses that we use to determine field direction show us that the magnetic field of a magnet points away from the north pole and toward the south pole.
What is a solenoid list any two differences between bar magnet and solenoid?
| Bar magnet | Solenoid |
|---|---|
| Its magnetism cannot be increased or decreased by any other external way. | Its magnetism can be destroyed or it can be stopped. |
| Its magnetism does not depend on any external applied factor. | Its magnetism does depend on various external factors applied like current, no of turns. |
In which case of comparing solenoid and bar magnet there is no exact similarity?
Q. 5) In which case of comparing solenoid and bar magnet there is no exact similarity? The net magnetic flux through any surface is zero. The net magnetic flux through any closed surface is zero.
How does the magnetic field of a solenoid different from that of a permanent magnet?
There is no difference between the magnetic field of a solenoid and that of a permanent magnet, since both have the same cause – electric currents. There is no difference between the magnetic field of a solenoid and that of a permanent magnet, since both have the same cause – electric currents.
How does the magnetic field vary inside a solenoid?
The magnetic field inside a solenoid is proportional to both the applied current and the number of turns per unit length. There is no dependence on the diameter of the solenoid, and the field strength doesn’t depend on the position inside the solenoid, i.e., the field inside is constant.
Why is current carrying solenoid called a temporary magnet?
(b) An electromagnet is called a temporary magnet because it produces magnetic field so long as current flows in its coil.
What is the direction of magnetic field in bar magnet?
North pole to south pole is the direction of magnetic field lines outside a bar-magnet. The magnetic field is the strongest inside the magnetic material. The strongest external magnetic fields are near the poles. A magnetic north pole will attract the south pole of another magnet, and repel a north pole.
What is the direction of magnetic field outside a bar magnet?
The direction of magnetic lines of force of a bar magnet is from north to south pole outside the magnet and from south pole to north pole inside the magnet.
Is there any similarity between a current carrying solenoid and a bar magnet?
there is no similarities except that ,they both act as magnets. Bar Magnet is a natural magnet which may be rectangular or cylindrical in shape and produce magnetic properties naturally.
How is a bar magnet an equivalent solenoid?
Derivation of Bar Magnet as an Equivalent Solenoid To demonstrate the similarity of a current carrying solenoid to a bar magnet, let us calculate axial field of a finite solenoid carrying current. Consider a small element of thickness d x of solenoid at distance x from O. and number of turns in element = n d x
How are field lines produced in a solenoid?
The field lines produced in a current-carrying solenoid is shown in the above figure. When the north pole of a bar magnet is brought near the end connected to the negative terminal of the battery, the solenoid repels the bar magnet.
What are the properties of a bar magnet?
A bar magnet is a rectangular or a square piece of an object made from iron or steel having permanent magnetic properties with two poles: north and south. What is Solenoid? A solenoid is a coil with a length greater than its diameter and is a type of electromagnet to produce controlled magnetic fields by passing an electric current through it.
How is a solenoid used in an electromagnet?
A coil of wire is known as a solenoid. The solenoid is used in an electromagnet that can convert electrical energy into mechanical energy. A magnetic field is created by the solenoid and helps to create linear motion. In automobiles, solenoids are used to give the power to start.
