Question

State the right hand thumb rule.

Answer 1

Hint: – In order to solve this problem you need a small length in which current is flowing then with the help of right hand putting your thumb as the direction of current then your curled finger will give you the structure of magnetic field lines. Knowing this will solve your problem and will give you the right answers.

Step By Step Answer:
This rule is one of the most used rules to find the direction of magnetic field due to a current carrying wire and also you can find the direction of current if you know the magnetic field around the wire due to the current carrying wire.

The current is flowing from A to B.
If a wire is carrying current and one knows the direction of flow of current then pointing your right thumb in the direction of current and curling your finger, your curled finger will give you the arrangement of magnetic field produced due to a current carrying any wire of any shame carrying electric current produces magnetic field which can be found with the help of right hand thumb rule. With the small length we can find the arrangement of magnetic fields with the help of that element of the wire.

Note – This concept is used to find the direction of magnetic field due to a current carrying wire and also you can find the direction of current if you know the magnetic field around the wire due to the current carrying wire. This is also used to derive various relations in the magnetic field. Right hand thumb rule is useful in case of flux, solenoid, two parallel current carrying wires and used to solve various such problems.