If the conductor carrying current is lying parallel to the magnetic field what will be the force?

A moving coil galvanometer is based on the magnetic effect of current. If the conductor is lying parallel to the field what will be the force?

A coil carrying electric current is placed in uniform magnetic field.

A current carrying wire produces a magnetic field in its surrounding space.Consider a tightly wound 100 turn coil of radius 10 cm, carrying a current of 1 A. What is the magnitude of the magnetic field at the centre of the coil ?