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प्रश्न
What is the shape of a current-carrying conductor whose magnetic field pattern resembles that of a bar magnet?
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उत्तर
The magnetic field produced by a current-carrying solenoid is similar to the magnetic field produced by a bar magnet. Therefore, the shape of the given current-carrying conductor is solenoid.
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संबंधित प्रश्न
The magnetic field inside a long straight solenoid-carrying current ______.
A positively-charged particle (alpha-particle) projected towards west is deflected towards north by a magnetic field. The direction of magnetic field is ______.
Observe the following figure:
If the current in the coil A is changed, will some current be induced in the coil B? Explain.
State the form of magnetic field lines around a straight current-carrying conductor.
Draw a sketch to show the magnetic lines of force due to a current-carrying straight conductor.
Name the type of magnet with which the magnetic field pattern of a current-carrying solenoid resembles
What type of core should be put inside a current-carrying solenoid to make an electromagnet?
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.
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?
What is the force on a current-carrying wire that is parallel to a magnetic field? Give reason for your answer.
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:
a current is passed through coil B by plugging the key?
Explain your answer mentioning the name of the phenomenon involved.
State two ways to increase the speed of rotation of a D.C. motor.
Differentiate between conductors and insulators.
State whether a magnetic field is associated or not around a static charge.
State whether a magnetic field is associated or not around a moving charge.
A simple motor is made in a school laboratory. A coil of wire is mounted on an axle between the poles of a horseshoe magnet, as illustrated.
In the example above, coil ABCD is horizontal and the battery is connected as shown.
- For this position, state the direction of the force on the arm AB.
- Why does the current in the arm BC not contribute to the turning force on the coil?
Which of the following pattern correctly describes the magnetic field around a long straight wire carrying current?
