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प्रश्न
On reversing the direction of the current in a wire, the magnetic field produced by it gets ______.
On reversing the direction of current in a wire, the magnetic field produced by it ______.
विकल्प
gets reversed in direction
increases in strength
decreases in strength
remains unchanged in strength and direction
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उत्तर १
On reversing the direction of the current in a wire, the magnetic field produced by it gets reversed.
उत्तर २
On reversing the direction of current in a wire, the magnetic field produced by it gets reversed in direction.
संबंधित प्रश्न
Draw a diagram showing the directions of three magnetic field lines due to a straight wire carrying current. Also show the direction of current in the wire.
How is the magnetic field due to a straight current carrying wire affected if current in wire is decreased?
How is the magnetic field due to a straight current carrying wire affected if current in wire is reversed?
What is the nature of the lines of force of the magnetic field due to a straight current carrying wire?
Magnetic lines of force inside current carrying solenoid are ____________.
AB is a current carrying conductor in the plane of the paper as shown in Figure. What are the directions of magnetic fields produced by it at points P and Q? Given r1 > r2, where will the strength of the magnetic field be larger?
It is established that an electric current through a metallic conductor produces a magnetic field around it. Is there a similar magnetic field produced around a thin beam of moving
- alpha particles,
- neutrons? Justify your answer.
A compass needle is placed near a current carrying wire. State your observations for the following cases and give reasons for the same in each case -
- Magnitude of electric current in wire is increased.
- The compass needle is displaced away from the wire.
When is the force experienced by a current-carrying straight conductor placed in a uniform magnetic field.
- Maximum
- Minimum
Two LED bulbs of 12W and 6W are connected in series. If the current through 12W bulb is 0.06A the current through 6W bulb will be ______.
