When the thumb is pointing in the ___, the direction of curl of fingers give the direction of magnetic field lines.

direction of current

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the direction opposite to that of current

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vertically upwards

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towards north

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Solution

The correct option is A direction of current
When a straight current carrying conductor is clasped in such a way that the thumb points in the direction of the current, the direction in which the fingers wrap is the direction of the magnetic field around the conductor.

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Similar questions

Q. When the thumb of a right hand points in the direction of the current, the fingers will curl in the direction of magnetic field lines.

When a current carrying conductor is held in a way that the thumb faces the direction of the current, the direction of the curl of fingers corresponds:

According to the right-hand thumb rule, if the thumb points in the direction of current, then the other fingers encircle in the direction of the _____.

The ___ at any point on magnetic field line gives the direction of magnetic field at that point.

The direction of the force on the conductor when the direction of magnetic field and current are given was found to be opposite to the actual direction of the force on the conductor.
Consider the given reasons why the wrong direction was obtained and choose the correct answers:

Statement 1: The middle finger is taken as the direction of force and the thumb is taken as the direction of the current.

Statement 2: The right hand is used instead of the left hand.

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When the thumb is pointing in the ___, the direction of curl of fingers give the direction of magnetic field lines.

The correct option is A direction of currentWhen a straight current carrying conductor is clasped in such a way that the thumb points in the direction of the current, the direction in which the fingers wrap is the direction of the magnetic field around the conductor.

The correct option is A direction of current
When a straight current carrying conductor is clasped in such a way that the thumb points in the direction of the current, the direction in which the fingers wrap is the direction of the magnetic field around the conductor.