How does a current loop behave like a magnetic dipole?

What is solenoid? How does a solenoid behave like a bar magnet?

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

Give two examples of magnetic dipole?

How does a semiconductor behave at 0K?

Show that a current carrying loop acts as a magnetic dipole. Derive an expression for its magnetic dipole moment?