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What Are the Various Ways in Which the Strength of Magnetic Field Produced by a Current-carrying Circular Coil Can Be Increased? - Science

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प्रश्न

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

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उत्तर

Ways to increase the strength of magnetic field produced by a current-carrying circular coil:
   1. By increasing the current passing through the coil
   2. By decreasing the radius of the coil
   3. By increasing the number of turns of wire in the coil

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

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लखमीर सिंह Physics (Science) [English] Class 10
पाठ 2 Magnetic Effects of Electric Current
Exercise 2 | Q 17.2 | 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.


State the form of magnetic field lines around a straight current-carrying conductor.


What is the shape of a current-carrying conductor whose magnetic field pattern resembles that of a bar magnet?


Describe how you will locate a current-carrying wire concealed in a wall.


 A current-carrying conductor is placed perpendicularly in a magnetic field. Name the rule which can be used to find the direction of force acting on the conductor.


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


State Fleming's left-hand rule. Explain it with the help of labelled diagrams.


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


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

 


What is the force on a current-carrying wire that is parallel to a magnetic field? Give reason for your answer. 


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.


Name the following diagram and explain the concept behind it.


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


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.


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


What does the direction of thumb indicate in the right-hand thumb rule. In what way this rule is different from Fleming’s left-hand rule?


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 current-carrying conductor of a certain length, kept perpendicular to the magnetic field experiences a force F. What will be the force if the current is increased four times, the length is halved and the magnetic field is tripled?


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