Question

Right hand thumb rule states that, :

• A. If we hold the current carrying conductor in right hand such that the thumb points in the direction of the flow of current, then the fingers encircle the wire in the direction opposite of the magnetic field lines
• B. If we hold the current carrying conductor in right hand such that the thumb points in the direction of the flow of current, then the fingers encircle the wire in the direction of the magnetic field lines
• C. If we hold the current carrying conductor in right hand such that the thumb points the magnitude of current, then the fingers encircle the wire in the magnitude of the magnetic field lines
• D. If we hold the current carrying conductor in the right hand such that the thumb points in the direction of the magnetic field lines , then the fingers encircle the wire in the direction of the electric current.
  

Answer 1

The correct option is B If we hold the current carrying conductor in right hand such that the thumb points in the direction of the flow of current, then the fingers encircle the wire in the direction of the magnetic field lines

According to the right hand thumb rule if we hold the current carrying conductor in the right hand such that the thumb points in the direction of flow of current then the fingers encircle the wire in the direction of the magnetic field lines.