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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
On reversing the direction of the current in a wire, the magnetic field produced by it gets ______.
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.
What is the nature of the lines of force of the magnetic field due to a straight current carrying wire?
In the diagram XY is a straight conductor carrying current in the direction marked by the arrow. The conductor is held vertical by passing it through a horizontal cardboard sheet.
Draw three magnetic lines of force on the board and mark the direction of magnetic field in your diagram. State two factors on which magnitude of magnetic field at a point, depends.
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 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.
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 ______.
- Assertion: A compass needle is placed near a current-carrying wire. The deflection of the compass needle decreases when the magnitude of the current in the wire is increased.
- Reason: The strength of a magnetic field at a point near the conductor increases by increasing the current.
