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प्रश्न
Draw a sketch to show the magnetic lines of force due to a current-carrying straight conductor.
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उत्तर
The magnetic field lines due to a current-carrying straight conductor are concentric circles whose centres lie on the wire.
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संबंधित प्रश्न
State Fleming’s left hand rule.
State the form of magnetic field lines around a straight current-carrying conductor.
State whether the following statement is true or false:
The magnetic field inside a long circular coil carrying current well be parallel straight lines.
What is the shape of a current-carrying conductor whose magnetic field pattern resembles that of a bar magnet?
What type of core should be put inside a current-carrying solenoid to make an electromagnet?
In a statement of Fleming's left-hand rule, what do the following represent?
(a) direction of centre finger.
(b) direction of forefinger.
(c) direction of thumb.
A current flows in a wire running between the S and N poles of a magnet lying horizontally as shown in Figure below:
The force on the wire due to the magnet is directed:
fron N to S
from S to N
vertically downwards
vertically upwards
A horizontal wire carries a current as shown in Figure below between magnetic poles N and S:
Is the direction of the force on the wire due to the magnet:
(a) in the direction the current
(b) vertically downwards
(c) opposite to the current direction
(d) vertically upwards
What is the force on a current-carrying wire that is parallel to a magnetic field? Give reason for your answer.
State condition when magnitude of force on a current carrying conductor placed in a magnetic field is zero?
State condition when magnitude of force on a current carrying conductor placed in a magnetic field is maximum?
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?
The following diagram shows two parallel straight conductors carrying the same current. Copy the diagram and draw the pattern of the magnetic field lines around them showing their directions. What is the magnitude of the magnetic field at a point 'X' which is equidistant from the conductors? Give justification for your answer.
Write Fleming’s left hand rule.
A current-carrying conductor is held in an exactly vertical direction. In order to produce a clockwise magnetic field around the conductor, the current should be passed in the conductor:
The shape of the magnetic field lines produced by a current-carrying conductor is ____________.
A current flows in a wire running between the S and N poles of a magnet lying horizontally as shown in the figure below:
The force on the wire due to the magnet is directed ____________.
The direction of force on a current carrying conductor in a magnetic field is given by ____________.
For a current in a long straight solenoid N- and S-poles are created at the two ends. Among the following statements, the incorrect statement is
A copper conductor is placed over two stretched copper wires whose ends ate connected to a D.C. supply as shown in the diagram.
- What should be the magnetic poles at the points A and B lying on either side of the conductor to experience the force in the upward direction?
- Name the law used to find these polarities.
