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प्रश्न
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
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उत्तर
vertically upwards
Applying Fleming's left-hand rule, we find that the force on the wire will act vertically upward.
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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.
Draw a sketch to show the magnetic lines of force due to a current-carrying straight conductor.
What happens when a current-carrying conductor is placed in a magnetic field?
Name one device whose working depends on the force exerted on a current-carrying coil placed in a magnetic field.
State Fleming's left-hand rule. Explain it with the help of labelled diagrams.
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?
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?
State Fleming’s left-hand rule.
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.
When will coil come to rest?
Differentiate between conductors and insulators.
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.
State under what conditions force acting on a current carrying conductor which is freely suspended in a magnetic field can be Zero.
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 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?
The diagram below shows a free conductor AB is kept in a magnetic field and is carrying current from A to B. (To avoid confusion complete path of the circuit is not shown) The direction of the force experienced by the conductor will be:
If the strength of the current flowing through a wire is increased, the strength of the magnetic field produced by it ______.
