I’m here to explain who this is
First of all, the conclusion is that you are right
We need to organize the terminology first
wind closely = wire winding density NL is high
wind a lot = the number of wires wound is high
However, if you look at the magnetic properties, there is a property proportional to density NL and a property proportional to frequency N
For example, the magnetic field produced by the coil is proportional to the density NL
Current electromagnetic induction induced in the coil is proportional to the number of times N
image text translation
(1)The intensity of the flowing current is increased
(2)Describe one way to make it big
(3)wind a coil tightly
This is an electromagnetic induction phenomenon when you look at the test questions, and this is strictly proportional to N
So the teacher who said I should wash a lot must be a student who said I should wash it right and dense
If you ask for a magnetic field instead of electromagnetic induction, it’s a close wind
However, regardless of who is right or wrong, I think the short answer question is 20 points, and I think the score distribution is wrong. I think it’s okay to give a partial score
conclusion
In physics, it’s very important to know exactly what phenomena are proportional to what physical quantity
The current induced in the coil is strictly a physical quantity proportional to the number of times
It means density, so the student’s answer is wrong