Question

What happens to the force experienced by a current carrying conductor placed in a uniform magnetic field, when placed
(a) parallel to magnetic field?
(b) perpendicular to magnetic field?

Answer 1

Answer:

a] no force [eg, electric motor ]

b]apply fleming's left hand rule.

Explanation:

the current is parallel to magnetic field the force acting upon is 0.

hope it helps.

Answer 2

Current carrying conductor

Explanation:

Whenever a current carrying conductor is placed in a uniform magnetic field. It will experience a magnetic force.  

(a) parallel to magnetic field

When the current carrying wire is placed parallel or anti-parallel to the magnetic field, the magnetic field does not act on it.

(b) perpendicular to magnetic field

When the current carrying conductor is placed perpendicular to the magnetic field, then magnetic force acting on the conductor is maximum.