Magnetic Field due to Solenoid
Magnetic Field Due To A Solenoid
A long insulated wire is tightly wound in the shape of a spring, with closely spaced turns that lie side by side, is known as a solenoid The figure below shows a solenoid.The difference between a solenoid and a circular coil is the fact that the length of the solenoid is much greater than its diameter.
When a current enters a solenoid at one end, it passes through each turn before coming out at the other end. Each turn acts as a circular coil and will produces its own magnetic field. The figure below shows a few turns of a solenoid. We can observe that the net magnetic field as represented by the magnetic field lines is similar to that of a bar magnet.
Actually, a current-carrying solenoid behaves like a bar magnet of the same shape. The magnetic field inside a long current-carrying solenoid is nearly uniform and is parallel to the axis of the solenoid. It also has opposite poles at its ends. The intensity of magnetic field depend on the following factors
1. The intensity depends on the number of turns in the coil per unit length. The more the number of turns of wire around the core the more will be the magnetic effect.
2. The intensity depends on the amount of current flowing in the solenoid. More is the current more will be the intensity of magnetic field.
On switching off of the current the core will lose its magnetic effect and it will stop behaving like a magnet such magnet are called _____________________ . | |||
| Right Option : A | |||
| View Explanation | |||
An electromagnet can be made by warping a wire around a ___________________ iron piece (known as the core) . | |||
| Right Option : A | |||
| View Explanation | |||
A solenoid is a device that can be used as an_____________________. | |||
| Right Option : B | |||
| View Explanation | |||
Students / Parents Reviews [10]
One of the best institutes to develope a child interest in studies.Provides SST and English knowledge also unlike other institutes. Teachers are co operative and friendly online tests andPPT develope practical knowledge also.
Aman Kumar Shrivastava
10thMy experience with Abhyas academy is very good. I did not think that my every subject coming here will be so strong. The main thing is that the online tests had made me learn here more things.
Hiya Gupta
8thAbhyas is a complete education Institute. Here extreme care is taken by teacher with the help of regular exam. Extra classes also conducted by the institute, if the student is weak.
Om Umang
10thA marvelous experience with Abhyas. I am glad to share that my ward has achieved more than enough at the Ambala ABHYAS centre. Years have passed on and more and more he has gained. May the centre flourish and develop day by day by the grace of God.
Archit Segal
7thBeing a parent, I saw my daughter improvement in her studies by seeing a good result in all day to day compititive exam TMO, NSO, IEO etc and as well as studies. I have got a fruitful result from my daughter.
Prisha Gupta
8thI have spent a wonderful time in Abhyas academy. It has made my reasoning more apt, English more stronger and Maths an interesting subject for me. It has given me a habbit of self studying
Yatharthi Sharma
10thAbhyas Methodology is very good. It is based on according to student and each child manages accordingly to its properly. Methodology has improved the abilities of students to shine them in future.
Manish Kumar
10thIt was good as the experience because as we had come here we had been improved in a such envirnment created here.Extra is taught which is beneficial for future.
Eshan Arora
8thMy experience with Abhyas is very good. I have learnt many things here like vedic maths and reasoning also. Teachers here first take our doubts and then there are assignments to verify our weak points.
Shivam Rana
7thIt was a good experience with Abhyas Academy. I even faced problems in starting but slowly and steadily overcomed. Especially reasoning classes helped me a lot.
