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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 - Science

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प्रश्न

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? 

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उत्तर

The current is flowing in clockwise direction around the coil when viewed from above.
Using Fleming's left-hand rule, the direction of current can be found.

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पाठ 2: Magnetic Effects of Electric Current - Exercise 3 [पृष्ठ ९३]

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लखमीर सिंह Physics (Science) [English] Class 10
पाठ 2 Magnetic Effects of Electric Current
Exercise 3 | Q 31 | पृष्ठ ९३

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.


Imagine that you are sitting in a chamber with your back to one wall. An electron beam, moving horizontally from back wall towards the front wall, is deflected by a strong magnetic field to your right side. What is the direction of magnetic field?


State the form of magnetic field lines around 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 ...........


 What are the various ways in which the strength of magnetic field produced by a current-carrying circular coil can be increased?


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


What type of core should be put inside a current-carrying solenoid to make an electromagnet?


The front face of a circular wire carrying current behaves like a north pole. The direction of current in this face of circular wire is:

(a) clockwise
(b) downwards
(c) anticlockwise
(d) upwards


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.


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.


 Name one device whose working depends on the force exerted on a current-carrying coil placed in a magnetic field. 


State whether a magnetic field is associated or not around a moving charge.


Write Fleming’s left hand rule.


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:


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 copper wire is held between the poles of a magnet

The current in the wire can be reversed. The pole of the magnet can also be changed over. In how many of the four directions shown can the force act on the wire?


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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