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प्रश्न
How is the magnetic field due to a straight current carrying wire affected if current in wire is reversed?
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उत्तर १
The direction of magnetic field lines will get reversed.
उत्तर २
Although the iron filing pattern remains unchanged when the wire's current flow is reversed, the compass needle's direction of deflection is changed.
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संबंधित प्रश्न
How is the magnetic field due to a straight current carrying wire affected if current in wire is decreased?
What is the nature of the lines of force of the magnetic field due to a straight current carrying wire?
Describe a set up for plotting the magnetic lines of force in: (i) A straight wire, (ii) A circular coil and (iii) A straight solenoid.
Which of the following statement is not correct about the magnetic field?
Magnetic lines of force inside current carrying solenoid are ____________.
A magnetic compass needle is placed in the plane of paper near point A as shown in Figure. In which plane should a straight current carrying conductor be placed so that it passes through A and there is no change in the deflection of the compass? Under what condition is the deflection maximum and why?
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
