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chound
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Electro magnetic Induction problem. Simple one, but please check wehre I am wrong.
A magnet moving down, goes through a coil and exits it below. Plot the graph showing variation of induced emf in coil with time.
emf = - Flux/Time
As the magnetic field B increases, emf becomes more and more negative.
Then while leaving, B decreases, emf becomes more and more positive.
Hence
The emf is first negative, forms a V shape in the negative emf region and then an inverted V in the positive emf region when it leaves.
4.Answer in the textbook
The emf is first positive ... in other words just the opposite of what I said.
Where did I go wrong ?
Homework Statement
A magnet moving down, goes through a coil and exits it below. Plot the graph showing variation of induced emf in coil with time.
Homework Equations
emf = - Flux/Time
The Attempt at a Solution
As the magnetic field B increases, emf becomes more and more negative.
Then while leaving, B decreases, emf becomes more and more positive.
Hence
The emf is first negative, forms a V shape in the negative emf region and then an inverted V in the positive emf region when it leaves.
4.Answer in the textbook
The emf is first positive ... in other words just the opposite of what I said.
Where did I go wrong ?
