Question

State right hand thumb rule which describes the direction of magnetic field around a current carrying wire.

• A. Imagine the wire to be held in right hand with the outstretched thumb pointing in the direction of the flow of electrons then the curl of the fingers represent the direction of the magnetic field.
• B. Imagine the wire to be held in right hand with the outstretched thumb pointing in the direction of the current then the curl of the fingers represent the direction of the magnetic field.
• C. Imagine the wire to be held in right hand with the outstretched thumb pointing in the direction opposite to that of the direction of flow current, then the curl of the fingers represent the strength of the magnetic field.
• D. Imagine the wire to be held in right hand with the outstretched thumb pointing in the direction of the current, then the curl of the fingers represent the strength of the magnetic field.
• E. Imagine the wire to be held in right hand with the outstretched thumb pointing in the direction of the current, then the curl of the fingers represent the north of the magnetic field.

Answer 1

The correct option is B

Imagine the wire to be held in right hand with the outstretched thumb pointing in the direction of the current then the curl of the fingers represent the direction of the magnetic field.

Imagine the wire to be held in right hand with the outstretched thumb pointing in the direction of the current then the curl of the fingers represent the direction of the magnetic field.