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प्रश्न
Fill in the following blank with suitable words:
For a current-carrying solenoid, the magnetic field is like that of a ...........
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उत्तर
For a current-carrying solenoid, the magnetic field is like that of a bar magnet.
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संबंधित प्रश्न
State Fleming’s left-hand rule.
Which of the following correctly describes the magnetic field near a long straight wire?
When is the force experienced by a current-carrying conductor placed in a magnetic field largest?
Imagine that you are sitting in a chamber with your back to one wall. An electron beam, moving horizontally from back wall towards the front wall, is deflected by a strong magnetic field to your right side. What is the direction of magnetic field?
State Fleming’s left hand rule.
State and explain the Clock face rule for determining the polarities of a circular wire carrying current.
What is the shape of field lines inside a current-carrying solenoid? What does the pattern of field lines inside a current-carrying solenoid indicate?
A current-carrying conductor is held in exactly vertical direction. In order to produce a clockwise magnetic field around the conductor, the current should passed in the conductor:
(a) from top towards bottom
(b) from left towards right
(c) from bottom towards top
(d) from right towards left
What happens when a current-carrying conductor is placed in a magnetic field?
When is the force experienced by a current-carrying conductor placed in a magnetic field largest?
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°
What is the force on a current-carrying wire that is parallel to a magnetic field? Give reason for your answer.
Two coils A and B of insulated wire are kept close to each other. Coil A is connected to a galvanometer while coil B is connected to a battery through a key. What would happen if:
a current is passed through coil B by plugging the key?
Explain your answer mentioning the name of the phenomenon involved.
How will the direction of force be changed, if the current is reversed in the conductor placed in a magnetic field?
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.
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 direction of force on a current carrying conductor in a magnetic field is given by ____________.
What does the direction of thumb indicate in the right-hand thumb rule. In what way this rule is different from Fleming’s left-hand rule?
If the strength of the current flowing through a wire is increased, the strength of the magnetic field produced by it ______.
