1What is a solenoid, and how can you make one at home?
2Why is a solenoid made of insulated wire, and why is the insulation removed at its two ends?
3A compass is placed at the right-hand end of a current-carrying coil, and the south pole of its needle is pulled towards the coil. Which pole has formed at the right-hand end? What will happen if the battery connections are swapped?
4State Maxwell's right-hand grip rule.
5How is the magnetic field of a solenoid like that of a bar magnet, and what is special about the field inside the solenoid?
6Name the three factors on which the strength of the magnetic field of a solenoid depends.
7Why is a solenoid used to make an electromagnet? Give one use of an electromagnet.
8What is magnetic flux? Give its symbol and its unit.
9Why is the magnetic flux of a bar magnet stronger at the poles than in the middle portion?
10How does the right-hand thumb rule for a straight wire differ from the right-hand grip rule for a solenoid?