Example of Fleming’s Left Hand Rule
Question: A wire carrying a current of 5 A is placed in a magnetic field of 0.3 T directed upwards. The wire is oriented perpendicular to the magnetic field and points to the east. Using Fleming’s left-hand rule, determine the direction of the force acting on the wire.
Solution:
According to Fleming’s left-hand rule:
Thumb points in the direction of the Force (F)
First finger points in the direction of the Magnetic Field (B)
Second finger points in the direction of the Current (I)
Given:
Current (I) = 5 A (eastward)
Magnetic Field (B) = 0.3 T (upward)
Using the left-hand rule:
Point the first finger (B) upward.
Point the second finger (I) eastward.
The force (F) direction is indicated by the thumb, which points northward.
Answer: The force acting on the wire is directed northward.
Fleming’s Left Hand Rule and Fleming’s Right Hand Rule
Fleming’s Left-Hand Rule and Fleming’s Right-Hand Rule are principles employed to ascertain the force’s orientation experienced by a conductor carrying electric current when exposed to a magnetic field. These rules were provided by John Ambrose Fleming and form the basics of electromagnetism. Their primary purpose is to predict the direction of the force acting on a conductor in relation to the magnetic field and the current’s flow.