मराठी

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 - Science

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प्रश्न

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

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उत्तर

parallel to the axis of the tube

The magnetic field lines in the middle of a current-carrying solenoid are parallel to the axis of the tube because magnetic field is uniform inside a solenoid.

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  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 2: Magnetic Effects of Electric Current - Exercise 2 [पृष्ठ ८३]

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लखमीर सिंह Physics (Science) [English] Class 10
पाठ 2 Magnetic Effects of Electric Current
Exercise 2 | Q 34 | पृष्ठ ८३

संबंधित प्रश्‍न

The magnetic field in a given region is uniform. Draw a diagram to represent it.


A positively-charged particle (alpha-particle) projected towards west is deflected towards north by a magnetic field. The direction of magnetic field is ______.


State whether the following statement is true or false:
The magnetic field inside a long circular coil carrying current well be parallel straight lines.


Draw a sketch to show the magnetic lines of force due to a current-carrying straight conductor.


State and explain the Clock face rule for determining the polarities of a circular wire carrying current.


Name the type of magnet with which the magnetic field pattern of a current-carrying solenoid resembles


A soft iron bar is inserted inside a current-carrying solenoid. The magnetic field inside the solenoid:

(a) will decrease
(b) will increase
(c) will become zero
(d) will remain the same


What happens when a current-carrying conductor is placed in a magnetic field?


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°

 


Which way does the wire in the diagram below tend to move? 

 


Name three factors on which the magnitude of force on a current carrying conductor placed in a magnetic field depends and state how does the force depend on the factors stated by you.


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?


Name the following diagram and explain the concept behind it.


State two ways to increase the speed of rotation of a D.C. motor.


A flat coil ABCD is freely suspended between the pole of a U-shaped permanent magnet with the plane of coil parallel to the magnetic field. 

When will coil come to rest?


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.


State under what conditions force acting on a current carrying conductor which is freely suspended in a magnetic field can be Zero.


Which of the following pattern correctly describes the magnetic field around a long straight wire carrying current?


A copper conductor is placed over two stretched copper wires whose ends ate connected to a D.C. supply as shown in the diagram.

  1. What should be the magnetic poles at the points A and B lying on either side of the conductor to experience the force in the upward direction?
  2. Name the law used to find these polarities.


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