How is the magnetic field inside a given solenoid made strong?

A 3.0 cm wire carrying a current of 10 A is placed inside a solenoid perpendicular to its axis. The magnetic field inside the solenoid is given to be 0.27 T. What is the magnetic force on the wire?

If the total number of turns of solenoid is doubled, and simultaneously the length of the solenoid is doubled, then the magnetic field inside the solenoid is also doubled. Is this statement true.

Choose the correct option The magnetic field inside a long straight solenoid carrying current

What is the force on a wire of length 4.0 cm placed inside a solenoid near its centre, making an angle 30^@ with its axis? The wire carries a current of 12 A and the magnetic field due to the solenoid has a magntiude of 0.25 T.

A solenoid 1.5 m long and 0.4 cm in diameter possesses 10 turns per cm length. A current of 5 A falls through it. The magnetic field at the axis inside the solenoid is