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प्रश्न
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°
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उत्तर
180°
The force exerted on a current-carrying wire placed in a magnetic field is zero when a current-carrying conductor is parallel to the field.
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संबंधित प्रश्न
The magnetic field inside a long straight solenoid-carrying current ______.
State qualitatively the effect of inserting an iron core into a current-carrying solenoid.
What is the shape of a current-carrying conductor whose magnetic field pattern resembles that of a bar magnet?
Name and state the rule to determine the direction of magnetic field around a straight current-carrying conductor.
What is a solenoid? Draw a sketch to show the magnetic field pattern produced by a current-carrying solenoid.
The front face of a circular wire carrying current behaves like a north pole. The direction of current in this face of circular wire is:
(a) clockwise
(b) downwards
(c) anticlockwise
(d) upwards
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
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
If the current in a wire is flowing in the vertically downward direction and a magnetic field is applied from west to east, what is the direction of force in the wire?
force experienced by a current-carrying straight conductor placed in a magnetic field which is perpendicular to it.
How will the direction of force be changed, if the current is reversed in the conductor placed in a magnetic field?
Which of the following factors affect the strength of force experience by current-carrying conduct in a uniform magnetic field?
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
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?
What do you know about Michael Faraday?
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?
Observe the given figure of Fleming's Left Hand Rule and write the labels of 'A' and 'B':
