Question

What happens to the force acting on current carrying
conductor placed in magnetic field when:
(a) Direction of magnetic field is reversed without
changing the direction of current.
(b) Direction of the current is reversed without
changing the direction of magnetic field.
(c) Direction of both the current and the magnetic
field is reversed.



Plzz answer this correctly...and a valid answer required plzzz

Answer 1

Answer:

There will be no change in force acting on current carrying conductor .

Explanation:

because the direction if changed if its parallel it will become anti parallel and still there will be no change in force as F = B I L sin ∅ where B represents magnetic field and I represents current flowing through it  and for both anti parallel and parallel f is 0 as sin 180 = sin 0 = 0

and in all other cases force remains same and force acting on the conductor does not change with direction . for perfect explanation just write the equation and tell that sin∅ is constant for reverse and both forward direction so there will be no change in force acting .

and we cannot take the quantity B or I negative because force cannot be negative.