The Solenoid And The Toroid
Chapter Name : Moving Charges And Magnetism |
Sub Topic Code : 101_12_04_08_01 |
Topic Name : The Solenoid And The Toroid |
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Sub Topic Name : The Solenoid |
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Introduction
We will learn about the application of Ampere's law in solenoid.
Pre-Requisites:
About Ampere's Law and magnetic field.
Activity:
Calculate the field inside a solenoid using Ampere's law and comment on the nature of the field.
Real Life Question:
Why in a solenoid field calculation is easy?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Enamelled | Coated with the Enamel. |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Text book | Find the expression of magnetic field in a solenoid in your text book. |
Real life uses :
In Television, Transducers, Automobile starter etc.
Places to visit :
Your school lab, text book
Practical examples around us
| Examples | Explainations |
|---|---|
| Electromagnets | Solenoids can be used as electromagnets as they have the capacity to control magnetic field. |
What you learn in Theory:
A solenoid is a long cylindrical frame of wires wound closely. Field outside the solenoid is zero and field inside the solenoid is uniform. Also field can be increased by inserting a iron rod in a solenoid.
What you learn in Practice:
Solenoid is a frame of wires wound closely insulated from each other. It is one of the application of Ampere's law and due to its simplicity it is used in many devices.