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Results tagged with magnetic-fields
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user 271314
For questions that utilize the concept of magnetic fields (commonly denoted by the letter B), or for questions whose answers likely involve magnetic fields. More specific than the [magnetism] tag, as questions about the phenomenon & theory of magnetism do not necessarily involve the discussion of fields.
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How is $B_p$ directly proportional to $I_p$ in a transformer?
The textbook I am studying from states the following
The voltage $V_P$ in the primary coil is directly proportional to the current $I_p$ in the coil
$$V_p\propto I_p$$
The magnetic flux density $B_p$ …
- 167
2
votes
2
answers
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Would throwing a charged ruler through space create a current?
I have been thinking about a certain scenario for a while and have a few questions concerning it
Consider the scenario where I rub a ruler against a woolen cloth creating a negative charge of $1$ coul …
- 167
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2
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What direction is current for an electron in both $E$ and $B$ fields?
According to Fleming's left hand rule:
I am a bit confused however in the case of an electron travelling in a region of both electric and magnetic fields, which direction would the electric current …
- 167