Question

draw comparison of magnetic field pattern due to current carrying solenoid and that of a bar magnet.

Answer 1

solenoid is temporary magnet but has strong magnetic field
when the current is flowing through it behaves like a magnet and pattern of magnetic field lines is same as bar magnet
it's strength of magnetic field can be increase or decrease by increasing or decreasing current

while bar magnet is permanent magnet
we can not demagnetised it and also we cannot in
increase or decrease it strength

Answer 2

Answer:

M.F. magnetic field

.........................

..........