हिंदी

State Whether the Following Statement is True Or False: the Magnetic Field Inside a Long Circular Coil Carrying Current Well Be Parallel Straight Lines.

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प्रश्न

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

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उत्तर

True.
The magnetic field inside a long circular coil carrying current will be in the form of parallel straight lines.

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अध्याय 5: Magnetic Effects of Electric Current - Exercise 2 [पृष्ठ ८२]

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लखमीर सिंग Physics [English] Class 10
अध्याय 5 Magnetic Effects of Electric Current
Exercise 2 | Q 8 | पृष्ठ ८२

संबंधित प्रश्न

Consider a circular loop of wire lying in the plane of the table. Let the current pass through the loop clockwise. Apply the right-hand rule to find out the direction of the magnetic field inside and outside the loop.


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 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.


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


A horizontal wire carries a current as shown in Figure below between magnetic poles N and S: 

  

Is the direction of the force on the wire due to the magnet:

(a) in the direction the current
(b) vertically downwards
(c) opposite to the current direction
(d) vertically upwards 


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: 

the current is stopped by removing the plug from the key? 

Explain your answer mentioning the name of the phenomenon involved. 


State condition when magnitude of force on a current carrying conductor placed in a magnetic field is zero?


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

What happens when a current is passed in the coil?


 A coil ABCD mounted on an axle is placed between the poles N and S of a permanent magnet as shown in Figure.

  1. In which direction will the coil begin to rotate when current is passed through the coil in direction ABCD by connecting a battery at the ends A and D of the coil?
  2. Why is a commutator necessary for continuous rotation of the coil?
  3. Complete the diagram with commutator, etc. for the flow of current in the coil?

i) Which principle is explained in this figure?
ii) Which rule is used to find out the direction of a force in this principle?
iii) In which machine this principle is used? Draw a diagram showing working of that machine


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 maximum.


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


The north pole of Earth’s magnet is in the ____________.


A current-carrying conductor is held in an exactly vertical direction. In order to produce a clockwise magnetic field around the conductor, the current should be passed in the conductor:


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:


If the strength of the current flowing through a wire is increased, the strength of the magnetic field produced by it ______.


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