Motional Electromotive Force
Chapter Name : Electromagnetic Induction |
Sub Topic Code : 101_12_06_06_01 |
Topic Name : Motional Electromotive Force |
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Sub Topic Name : Motional Electromotive Force |
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Introduction
An EMF can be induced
in a conducting rod which is moving perpendicular to a magnetic field
Pre-Requisites:
Electromagnetic
Induction, Magnetic Flux, Faraday’s Law of Induction, Motional Electromotive
Force, EMF
Activity:
Connect a sliding rod
over a conducting loop in the presence of a constant magnetic field
perpendicular to the loop. Connect a galvanometer across any two points in the
loop. Move the sliding rod at a fixed velocity and see if the value of current
agrees with the motional emf value obtained theoretically.
Real Life Question:
Will an EMF be
induced in a conducting rod moving in a magnetic field?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Motional Electromotive ForceLaw | The Electromotive Force generated by the motion of a conductor is known as Motional EMF |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Motional Electromotive Force chart | To know about Motional Electromotive Force |
Real life uses :
Can help us to find the polarity of EMF induced in conducting rod
Places to visit :
Physics lab
Practical examples around us
| Examples | Explainations |
|---|---|
| Motional Electromotive Force | Its effect in the physical world |
What you learn in Theory:
Can help us to find the polarity of EMF induced in conducting rod
What you learn in Practice:
That the EMF can be
induced not only by varying the magnetic field across the loop. It can also be
induced by moving an edge of the loop at a velocity.