Question

The direction of force on a current carrying conductor placed in a magnetic field is given by:
A.)Fleming's Left-Hand Rule
B.)Fleming's Right-Hand Rule
C.)End rule
D.)Right hand palm rule

Answer 1

Hint- A current carrying conductor placed in a magnetic field experiences a force. In cases like this if the direction of magnetic field and the current flowing through the conductor are perpendicular to each other then the force acting on the conductor will be perpendicular to both.

Step By Step Answer:
The direction of the force can be determined by using the Fleming's Left-Hand Rule.

Fleming's Left-Hand Rule: -

For getting the direction of the force acting on a current carrying conductor placed in a magnetic field

We will follow this procedure of Fleming's Left-Hand Rule: -

Hold the thumb and forefinger and middle finger of our left hand mutually at right angles to each other. Then according to the figure given above, the fore finger of the left hand should points in the direction of the external magnetic field, and the middle finger of the left hand should point in the direction of the current flowing in the conductor ,then thumb will point in the direction of the force which is exerted on the current carrying conductor.

Hence the option(A) is the correct answer.

Additional Information:
Force exerted on the conductor-
$F = BIl\sin \theta$
Where,

$F =$force exerted on the conductor
$B =$magnetic field
$I =$current flowing through conductor
$l =$length of conductor
$\theta =$angle made by the conductor with magnetic field

Note- There are some factors which will affect the force acting on a current carrying conductor placed in a magnetic field:
(i) Strength of magnetic field in which the conductor is placed.
(ii) Current flowing through the conductor
(iii) Length of the conductor which is placed in the magnetic field.