- #1
Why no induced current when these coils are stationary?
- Thread starter Mariah
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In summary, the conversation discusses the lack of induced current when two coils are stationary relative to each other and the possibility of current being present due to moving charges in one coil causing a current in the other. The conversation also addresses the concept of why a transformer only works with AC and not DC, suggesting to focus on understanding the role of magnetic fields rather than current.
- #2
davenn
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Hi
welcome to PF
this almost looks like homework/schoolwork ?
we will guide you, but we won't give direct answers
do you know why a transformer works with AC and not DC ?
if you do, then you know the answer to your above problem
if you don't, then go search google for the answer
think about the magnetic field and what it is doing, rather than the currentDave
welcome to PF
Mariah said:
this almost looks like homework/schoolwork ?
we will guide you, but we won't give direct answers
do you know why a transformer works with AC and not DC ?
if you do, then you know the answer to your above problem
if you don't, then go search google for the answer
think about the magnetic field and what it is doing, rather than the currentDave
- #3
berkeman
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- 19,896
Welcome to the PF.Mariah said:
Please repost in the Homework Help, Introductory Physics forum. Please fill out the HH Template that you are provided when starting a new schoolwork thread there, and be sure to fill out the sections on the Relevant Equations and your Attempt at a Solution.
1. Why is there no induced current when these coils are stationary?
The movement of the coils is what creates a change in the magnetic field, which in turn induces an electric current. When the coils are stationary, there is no change in the magnetic field, therefore no induced current.
2. How does the motion of the coils affect the induction of current?
The motion of the coils creates a change in the magnetic field, which is necessary for the induction of current. The faster the motion, the greater the change in the magnetic field and the stronger the induced current.
3. Can there be induced current without any movement of the coils?
No, in order for there to be induced current, there must be a change in the magnetic field. This change can only occur through movement of the coils or a change in the external magnetic field.
4. Why is the induced current stronger when the coils are moving at a faster speed?
The speed of the coils affects the rate of change in the magnetic field, which directly affects the strength of the induced current. The faster the coils move, the greater the change in the magnetic field and the stronger the induced current.
5. How does the number of coils affect the induction of current?
The number of coils does not directly affect the induction of current. It is the change in the magnetic field created by the movement of the coils that induces the current. However, having more coils can increase the overall strength of the induced current due to the increased surface area for the magnetic field to act upon.
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