Xam idea - Science

Book: Xam idea - Science

Chapter: 13. Magnetic Effects of Electric Current

Subject: Physics - Class 10th

Q. No. 18 of Proficiency Exercise

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18

What is solenoid? What does the divergence of magnetic field lines near the ends of a current-carrying straight solenoid indicate?

A coil of many circular turns of insulated copper wire wrapped closely in the shape of a cylinder is called a solenoid.
The divergence of magnetic field lines near the ends of a current-carrying straight solenoid indicate a decrease in the magnetic field strength near the ends of the solenoid.

Fig.: Magnetic field lines around a current carrying solenoid

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