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प्रश्न
Name and state the rule to determine the direction of magnetic field around a straight current-carrying conductor.
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उत्तर
Maxwell’s right-hand thumb rule is used to determine the direction of magnetic field around a straight current-carrying conductor.
According to this rule, if we grasp a current-carrying wire in our right hand so that our thumb points in the direction of the current, the direction in which our fingers encircle the wire will give the direction of magnetic field lines around the wire.
When thumb points upwards, the curled fingers are anticlockwise. So, the direction of magnetic field lines is anticlockwise.
When thumb points downwards, the curled fingers are clockwise. So, the direction of magnetic field lines is clockwise.
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संबंधित प्रश्न
State Fleming’s left-hand rule.
What is the shape of a current-carrying conductor whose magnetic field pattern resembles that of a bar magnet?
Fill in the following blank with suitable words:
For a current-carrying solenoid, the magnetic field is like that of a ...........
State and explain the Clock face rule for determining the polarities of a circular wire carrying current.
List three ways in which the magnetic field strength of a current-carrying solenoid can be increased?
The magnetic field lines in the middle of the current-carrying solenoid are?
(a) circles
(b) spirals
(c) parallel to the axis of the tube
(d) perpendicular to the axis of the tube
The magnetic field associated with a current-carrying straight conductor is in anticlockwise direction. If the conductor was held along the east-west direction, what will be the direction of current through it? Name and state the rule applied to determine the direction of current?
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.
For Fleming's left-hand rule, write down the three things that are 90° to each other, and next to each one write down the finger or thumb that represents it.
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°
State condition when magnitude of force on a current carrying conductor placed in a magnetic field is maximum?
State the unit of magnetic field in terms of the force experienced by a current carrying conductor placed in a magnetic field
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.
Differentiate between conductors and insulators.
State under what conditions force acting on a current carrying conductor which is freely suspended in a magnetic field can be maximum.
The north pole of Earth’s magnet is in the ____________.
When current is parallel to a magnetic field, then force experience by the current-carrying conductor placed in a uniform magnetic field is ____________.
Which of the following pattern correctly describes the magnetic field around a long straight wire carrying current?
