# What Is Thumb Rule For Magnetic Field??

## What Is Thumb Rule For Magnetic Field??

### You Know What is Thumb Rule For Magnetic Field And How We Can Use This Rule In The Practical Application!? ?

As shown in Figer(A)

if the Straight Conductor is held in the right hand such that the thumb indicates The Direction of Current then the other fingers curled around the conductor point the direction of Magnetic Field.

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The Corkscrew Rule

Consider a right handed screw or wood screw shown in Figer(B).

When This Screw is to be inserted in a wooden plank, it is to be rotated in the Clockwise Direction.

If the direction of advancement of the screw indicates the direction of current, then the circular Rotational Motion of the screw indicates the direction of the magnetic field.

Question part of this article :

(1)what is right hand thumb rule???
Ans:if the straight conductor is held in the right hand such that the thumb indicates the direction of current then the other fingers curled around the conductor point the direction of magnetic field.

(2)what is the corkscrew rule???
Ans:When this screw is to be inserted in a wooden plank, it is to be rotated in the clockwise direction.

If the direction of advancement of the screw indicates the direction of current, then the circular rotational motion of the screw indicates the direction of the magnetic field.

(3)in the right hand thumb rule the finger is give direction of????
Ans:direction of field

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