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A Current Flows in a Wire Running Between the S and N Poles of a Magnet Lying Horizontally as Shown in Figure Below: - Science

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प्रश्न

A current flows in a wire running between the S and N poles of a magnet lying horizontally as shown in Figure below: 

The force on the wire due to the magnet is directed: 

fron N to S
 from S to N
 vertically downwards
 vertically upwards

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उत्तर

 vertically downwards
Using Fleming's left-hand rule, we find that the force on wire should act vertically downwards.

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  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 2: Magnetic Effects of Electric Current - Exercise 3 [पृष्ठ ९२]

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लखमीर सिंग Physics (Science) [English] Class 10
अध्याय 2 Magnetic Effects of Electric Current
Exercise 3 | Q 27 | पृष्ठ ९२

संबंधित प्रश्न

The magnetic field inside a long straight solenoid-carrying current ______.


State qualitatively the effect of inserting an iron core into a current-carrying solenoid.

 

Name the rule for finding the direction of magnetic field produced by a straight current-carrying conductor.


Name any two factors on which the strength of magnetic field produced by a current-carrying solenoid depends. How does it depend on these factors?


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.


State two ways to increase the force on a current-carrying conductor in a magnetic field.


If the current in a wire is flowing in the vertically downward direction and a magnetic field is applied from west to east, what is the direction of force in the wire?


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. 


How will the direction of force be changed, if the current is reversed in the conductor placed in a magnetic field?


State the unit of magnetic field in terms of the force experienced by a current carrying conductor placed in a magnetic field


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?


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


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 strength of magnetic field around a current-carrying conductor is ____________.


The direction of force on a current carrying conductor in a magnetic field is given by ____________.


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:


Describe the activity that shows that a current-carrying conductor experiences a force perpendicular to its length and the external magnetic field. How does Fleming’s left-hand rule help us to find the direction of the force acting on the current carrying conductor?


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.

  1. For this position, state the direction of the force on the arm AB.
  2. Why does the current in the arm BC not contribute to the turning force on the coil?

What do you know about Michael Faraday?


An alpha particle enters a uniform magnetic field as shown. The direction of force experienced by the alpha particle is ______.


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