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

  1. Class 10
  2. Chapter 13 Class 10 - Magnetic Effects of Electric Current

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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 9 years. He provides courses for Maths and Science at Teachoo.