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प्रश्न
Draw the magnetic lines of force due to a circular wire carrying current.
उत्तर
When current passes through a circular wire, magnetic field is produced around it. The magnetic field lines are circular near the wire. At the centre, these lines are straight.
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संबंधित प्रश्न
Which of the following correctly describes the magnetic field near a long straight wire?
Name the rule for finding the direction of magnetic field produced by a straight current-carrying conductor.
Describe how you will locate a current-carrying wire concealed in a wall.
A current-carrying conductor is placed perpendicularly in a magnetic field. Name the rule which can be used to find the direction of force acting on the conductor.
The force exerted on a current-carrying wire placed in a magnetic field is zero when the angle between the wire and the direction of magnetic field is:
45°
60°
90°
180°
A flat coil ABCD is freely suspended between the pole of U-shaped permanent magnet with the plane of coil parallel to the magnetic field.
What happens when a current is passed in the coil?
A flat coil ABCD is freely suspended between the pole of a U-shaped permanent magnet with the plane of coil parallel to the magnetic field.
Name an instrument which makes use of the principle stated above.
The strength of magnetic field around a current-carrying conductor is ____________.
Which of the following factors affect the strength of force experience by current-carrying conduct in a uniform magnetic field?
A current-carrying conductor of a certain length, kept perpendicular to the magnetic field experiences a force F. What will be the force if the current is increased four times, the length is halved and the magnetic field is tripled?
