A current is set up in a long copper pipe. Is there a magnetic field (a) inside (b) outside the pipe?

A current is set up a long copper pipe. Is there a magnetic field inside the pipe?

A current is set up in a long copper pipe. Is there a magnetic field outside the pipe?

The magnetic field inside a long solenoid is

The waves set up in a closed pipe are

STATEMENT - 1 : For a current carrying wire, there is an electric field inside the wire and magnetic field outside the wire. and STATEMENT - 2 : A current carrying wire cannot generate an electric field outside it.

STATEMENT - 1 : For a current carrying wire, there is an electric field inside the wire and magnetic field outside the wire. and STATEMENT - 2 : A current carrying wire cannot generate an electric field outside it.

If a long hollow copper pipe carries a current, then magnetic field is produced: