Question

Please explain me Left hand rule​

Answer 1

Fleming's left hand rule

Whenever a current carrying conductor is placed in a magnetic field, the conductor experiences a force which is perpendicular to both the magnetic field and the direction of current. According to Fleming's left hand rule, if the thumb, fore-finger and middle finger of the left hand are stretched to be perpendicular to each other as shown in the illustration at left, and if the fore finger represents the direction of magnetic field, the middle finger represents the direction of current, then the thumb represents the direction of force. Fleming's left hand rule is applicable for motors.

Method to follow:-

• The Thumb represents the direction of Thrust on the conductor (force on the conductor).
• The Fore finger represents the direction of the magnetic Field.
• The Center finger (middle finger) the direction of the Current.

Answer 2

Fleming Left hand rule:-

–> It states that whenever we placed a current carrying rectangular coil in a magnetic field, rectangular coil experiences a force which is perpendicular to the direction of current and magnetic field both.

We can also visualize this law by our left hand:

–> Hold out your left hand with the forefinger, second finger and thumb at the right angle to one another. If the forefinger represents the direction of the field and the second finger represents that of the current, then thumb gives the direction of the force.

–> This law is only applicable for electric motors which used in fans, Coolers, Water pumps etc.