Question & Answer » Physics Questions » State the Right Hand Thumb Rule

State the Right Hand Thumb Rule

State the right hand thumb rule. Let us explore the right hand thumb rule and understand its applications in magnetism and electromagnetism. Find the answer to this question and access a vast question bank that is customized for students.

Answer:

  • The right hand thumb rule was given by Maxwell
  • Right hand thumb rule is used to find out the direction of the induced current or the direction of the magnetic field
  • The right hand thumb rule states that if we hold a straight current carrying conductor with our right hand such that the thumb points in the direction of the current, then the curled fingers indicate the direction of the magnetic field lines
  • If the current is flowing in the downward direction, then the direction of the curled fingers will be in a clockwise direction, and if the current is flowing in the upward direction, then the direction of the curled fingers will be in an anticlockwise direction
  • This rule is very useful as we can use it to find the direction of the current induced while we are knowing the direction of the magnetic field or we can use it to find the direction of the magnetic field while we are knowing the direction of the current