Check sibling questions

How does a solenoid behave like a magnet? Can you determine the north and south poles of a current–carrying solenoid with the help of a bar magnet? Explain.

 

Answer

A solenoid is a coil containing many circular turns. These wires are wrapped closely in the shape of a cylinder.

 

A solenoid behaves like a bar magnet when a current is passed through it.

It’s one end of behaves as Magnetic North Pole and the other end as Magnetic South Pole.

Like in a bar magnet, the field lines emerge from one end and merge into another.

solenoid-and-bar-magnet-similarity---teachoo.jpg

Yes, the north and south poles of a current–carrying solenoid can be determined with the help of a bar magnet.

 

We can bring the North of a Bar Magnet towards one end of the solenoid

  • If the magnet is repelled, the end is north end of the solenoid.
  • If the magnet is attracted, the end is south end of the solenoid.

 

If we find the north end, the other end is South. And vice versa

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CA Maninder Singh is a Chartered Accountant for the past 12 years and a teacher from the past 16 years. He teaches Science, Accounts and English at Teachoo