Answer the following question in short.
1. What happens when a bundle of wires of soft iron is placed inside the coil of a solenoid carrying a steady current? Name the device obtained. Why is it called so?
2. Draw the magnetic field lines inside a current carrying solenoid. What does this pattern of magnetic field lines indicate?
2. Draw the magnetic field lines inside a current carrying solenoid. What does this pattern of magnetic field lines indicate?
1. The device obtained is called . It is called so because it exhibits properties when an electric current passes through the coil.
2. The magnetic field lines inside a current-carrying solenoid are . These field lines indicate that the magnetic field inside the solenoid is .