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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 rule to determine the direction of a current induced in a coil due to its rotation in a magnetic field.
What is the other name of Maxwell's right-hand thumb rule?
Name and state the rule to find the direction of current induced in a coil due to its rotation in a magnetic field.
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 ____________.
A current through a horizontal power line flows from south to north direction. The direction of magnetic field line 0.5m above it is ____________.
Choose the incorrect statement
The strength of magnetic field inside a long current carrying straight solenoid is
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Given below is a circuit to study the magnetic effect of electric current. ABCD is a cardboard kept perpendicular to the conductor XY. A magnetic compass is placed at the point P of the cardboard. P1 and P2 are the positions of the magnetic compass, before and after passing a current through XY respectively.
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- Name the rule that is used to predict the direction of deflection of the magnetic compass.
- State the direction of current in the conductor (X to Y or Y to X) when the circuit is complete.
- If resistance R is increased, then what will be the effect on the magnetic lines of force around the conductor?
