हिंदी

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?

Advertisements
Advertisements

प्रश्न

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?

Advertisements

उत्तर

The strength of magnetic field produced by a current-carrying solenoid depends on:

(i) The number of turns in the solenoid:
If the number of turns in the solenoid is large, they will produce greater magnetism.

(ii) The nature of core material used in making the solenoid:
If a soft iron rod is used as core in the solenoid, it produces strongest magnetism.

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 5: Magnetic Effects of Electric Current - Exercise 2 [पृष्ठ ८२]

APPEARS IN

लखमीर सिंग Physics [English] Class 10
अध्याय 5 Magnetic Effects of Electric Current
Exercise 2 | Q 19 | पृष्ठ ८२

संबंधित प्रश्न

Which of the following property of a proton can change while it moves freely in a magnetic field? (There may be more than one correct answer.)


Which of the following correctly describes the magnetic field near a long straight wire?


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 rule to determine the direction of a force experienced by a current-carrying straight conductor placed in a magnetic field which is perpendicular to it.


Observe the following figure:

If the current in the coil A is changed, will some current be induced in the coil B? Explain.


Name and state the rule to determine the direction of magnetic field around a straight current-carrying conductor.


 List three ways in which the magnetic field strength of a current-carrying solenoid can be increased?


The magnetic field associated with a current-carrying straight conductor is in anticlockwise direction. If the conductor was held along the east-west direction, what will be the direction of current through it? Name and state the rule applied to determine the direction of current?

 

 


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


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 


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? 


 force experienced by a current-carrying straight conductor placed in a magnetic field which is perpendicular to it. 


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


State Fleming’s left-hand rule.


Differentiate between conductors and insulators.


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


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?

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?


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.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×