Fleming’s Left Hand Rule. What happened? Bulbs are not glowing properly. Junk box. Whenever a current carrying conductor is placed in a magnetic field, it experiences a force due to the magnetic field. What will happen if I reverse the poles of the magnet? How can we find the direction of force acting on the conductor? Wait, I will search in my database. How to find the direction of force acting on the conductor? Searching. Answer found. The direction of force acting on the conductor can be found out using Fleming’s Left Hand Rule. But, how to use Fleming’s Left Hand Rule? Loading. Stretch the thumb, forefinger and the middle finger of your left hand in such a way that they are perpendicular to each other. Yes, I got it. It is like this. Magnetic field. Forefinger. The forefinger points to the direction of the magnetic field. Current. Middle finger. The middle finger points in the direction of the current. Force. Thumb. The thumb gives the direction of force or motion acting on the conductor. Yes. Now I have understood how to use Fleming’s Left Hand Rule. Science Exhibition. Demonstration of Fleming’s Left Hand Rule. Fleming’s Left Hand Rule is used in electric motors which are used in fans, mixers, printers, etc. The End.