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प्रश्न
The magnetic field in a given region is uniform. Draw a diagram to represent it.
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उत्तर
The magnetic field lines inside a current-carrying long straight solenoid are uniform.
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संबंधित प्रश्न
The magnetic field inside a long straight solenoid-carrying current ______.
Which of the following property of a proton can change while it moves freely in a magnetic field? (There may be more than one correct answer.)
Which of the following correctly describes the magnetic field near a long straight wire?
State whether the following statement is true or false
The field at the centre of a long circular coil carrying current will be parallel straight lines.
What concealed do you get from the observation that a current-carrying wire deflects a compass needle placed near it?
Name and state the rule to determine the direction of magnetic field around a straight current-carrying 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.
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
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:
the current is stopped by removing the plug from the key?
Explain your answer mentioning the name of the phenomenon involved.
State condition when magnitude of force on a current carrying conductor placed in a magnetic field is zero?
Name and state the law which is used to determine the direction of force on a current carrying conductor placed in a magnetic field.
How will the direction of force be changed, if the current is reversed in the conductor placed in a magnetic field?
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?
Name and state the rule of determine the direction of force experienced by a current carrying straight conductor placed in a uniform magnetic field which is perpendicular to it.
Write Fleming’s left hand rule.
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:
Assertion (A): A magnetic field exerts a force on a moving charge in the same direction as the direction of the field itself.
Reason (R): The direction of force is given by Fleming’s left-hand rule.
Assertion (A): A current carrying straight conductor experiences a force when placed perpendicular to the direction of magnetic field.
Reason (R): The net charge on a current carrying conductor is always zero.
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.
