We use _________ to find the direction of force when two current carrying conductors are kept parallel to each other.

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Solution

Fleming's left-hand rule:
Fleming's left-hand rule states that if we arrange our thumb, forefinger and middle finger of the left hand perpendicular to each other, then the thumb indicates towards the direction of magnetic force, the forefinger indicates towards the direction of the magnetic field and the middle finger indicates towards the direction of current.
The direction of force when two current carrying conductors are kept parallel to each other can be found by Fleming's left-hand rule.
Therefore, We use Fleming's left-hand rule to find the direction of force when two current carrying conductors are kept parallel to each other.

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