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प्रश्न
What are the various ways in which the strength of magnetic field produced by a current-carrying circular coil can be increased?
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उत्तर
Ways to increase the strength of magnetic field produced by a current-carrying circular coil:
1. By increasing the current passing through the coil
2. By decreasing the radius of the coil
3. By increasing the number of turns of wire in the coil
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संबंधित प्रश्न
The magnetic field inside a long straight solenoid-carrying current ______.
State Fleming’s left-hand rule.
State the rule to determine the direction of a force experienced by a current-carrying straight conductor placed in a magnetic field which is perpendicular to it.
Name the rule for finding the direction of magnetic field produced by a straight current-carrying conductor.
Fill in the following blank with suitable words:
For a current-carrying solenoid, the magnetic field is like that of a ...........
List three ways in which the magnetic field strength of a current-carrying solenoid can be increased?
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When is the force experienced by a current-carrying conductor placed in a magnetic field largest?
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.
State Fleming's left-hand rule. Explain it with the help of labelled diagrams.
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?
Name and state the law which is used to determine the direction of force on a current carrying conductor placed in a magnetic field.
State two ways to increase the speed of rotation of a D.C. motor.
A current flows in a wire running between the S and N poles of a magnet lying horizontally as shown in the figure below:
The force on the wire due to the magnet is directed ____________.
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 factors affect the strength of force experience by current-carrying conduct in a uniform magnetic field?
A magnetic field directed in north direction acts on an electron moving in east direction. The magnetic force on the electron will act ____________.
Which of the following pattern correctly describes the magnetic field around a long straight wire carrying current?
