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प्रश्न
State a law, which determines the direction of magnetic field around a current carrying wire.
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उत्तर
The right-hand thumb rule determines the direction of a magnetic field around a current carrying wire. It states that if we hold the current carrying conductor in the right hand such that the thumb points in the direction of the flow of current, then the fingers encircle the wire in the direction of the magnetic field lines.

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संबंधित प्रश्न
State the rule to determine the direction of a magnetic field produced around a straight conductor-carrying current.
State the right-hand thumb rule.
What is the other name of Maxwell's right-hand thumb rule?
State and explain Maxwell's right-hand thumb rule.
Name the rule which gives the direction of induced current.
A straight wire lying in a horizontal plane carries a current from north to south.
- What will be the direction of magnetic field at a point just underneath it?
- Name the law used to arrive at the answer in part (a).
A positive charge is moving towards a person. The direction of magnetic field lines will be in ____________.
The strength of each magnet reduces to half when it is cut along its length into the equal parts magnetic field strength of a solenoid. The polarity of the solenoid can be determined by ____________.
Choose the incorrect statement
A constant current flows in a horizontal wire in the plane of the paper from east to west as shown in Figure. The direction of magnetic field at a point will be North to South

