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प्रश्न
force experienced by a current-carrying straight conductor placed in a magnetic field which is perpendicular to it.
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उत्तर
Fleming's left-rule will be used here to find the direction of force experienced by the conductor. According to this rule, when left hand's thumb, forefinger and centre finger are held mutually perpendicular to one another, the forefinger represents the direction of the magnetic field, the centre finger represents the direction of the current and the thumb represents the direction of the force experienced by the coil.
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संबंधित प्रश्न
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?
Draw a sketch to show the magnetic lines of force due to a current-carrying straight conductor.
What is a solenoid? Draw a sketch to show the magnetic field pattern produced by a current-carrying solenoid.
The diagram given below represents magnetic field caused by a current-carrying conductor which is:
(a) a long straight wire
(b) a circular coil
(c) a solenoid
(d) a short straight wire
Name one device whose working depends on the force exerted on a current-carrying coil placed in a magnetic field.
The force experienced by a current-carrying conductor placed in a magnetic field is the largest when the angle between the conductor and the magnetic field is:
45°
60°
90°
180°
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
In the simple electric motor of figure given below, the coil rotates anticlockwise as seen by the eye from the position X when current flows in the coil
Is the current flowing clockwise or anticlockwise around the coil when viewed from above?
State condition when magnitude of force on a current carrying conductor placed in a magnetic field is maximum?
How will the direction of force be changed, if the current is reversed in the conductor placed in a magnetic field?
State the unit of magnetic field in terms of the force experienced by a current carrying conductor placed in a magnetic field
Name the following diagram and explain the concept behind it.
A flat coil ABCD is freely suspended between the pole pieces of a U-shaped permanent magnet with the plane of coil parallel to the magnetic field.
When will the couple acting on the coil be
- maximum
- minimum?
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.
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:
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?
