Teacher Xu, Please Take Care of the Reckless Students in Your Class

Because the total electromotive force of the wire frame is always 0, once all the wire frame enters the magnetic field area, both sides of the wire frame cut the magnetic induction line, and the sum of the generated electromotive force is 0, so the self-induced electromotive force is also 0...

Under the eyes of the two invigilators, Luo Pingting gave the answer to the second question without any pause!

……Several.

103 A question without two or three solutions is not worthy of being a student of Teacher Xu! [4 more!Two in one!Please subscribe! ]

finished!

The second question is done!

In ten minutes, this student from Yunhu No. [-] Middle School actually completed two questions!

Ten minutes!

This is not doing your usual physics exam!

This is not a multiple choice question!

This is a physics competition!

Moreover, the solution to each question here is not a one-line or two-line answer!

The idea of ​​each question is very complicated!

The process is line by line!

There are even some issues that need to be discussed in a targeted manner!

This discussion takes more than a dozen steps!

But in such a rare situation, someone has completed two questions!

"How is it possible! How is this possible?!"

"Is it cheating?..."

But the invigilators knew very well that the test papers came directly from the organizer's building and were escorted all the way to the designated test room.

The invigilators also got the test papers 10 minutes before the test!

And when they opened the password box containing the test papers, they only knew half of it, and the other half was the intelligent random password machine in the hands of the staff who brought the test papers.

There is absolutely no possibility of cheating!

If it is possible to cheat, then this probability is much smaller than the probability of making two questions in ten minutes!

They stared at Luo Pingting's test paper.

Remember her answering process!

The whole process is smooth and smooth!

There is no sign of hesitation and jamming!

But looking at other candidates, even if they have already listed their ideas on the cursive paper, they will still stop when they are actually answering, either to see if what is written in front of them is correct, or they suddenly realize that they are wrong.

"This, this, this..."

Looking at Luo Pingting again, there are only a few lines of calculation traces on her acting papyrus.

This is in great contrast to some candidates who have already used two pieces of playing paper, and the first question has not been done yet.

Not just Luo Pingting, not just this exam room, as long as other exam rooms are classmates of class 30 of Yunhu No. [-] Middle School, their progress is very fast!

The first question has already been completed!

The second question, some are in the process of solving, and some have been completed!

The fastest is Qian Mengmeng.

She has finished writing the third question!

She stopped.

In the 017 exam at this time, the three invigilators all stretched their necks and stared at Qian Mengmeng's exam paper.

This confused Dong Mengshan behind him, "???"

what's the situation?

What do they mean?

Why are you all standing in front of the cannon fodder from No. [-] High School in front of me?

What catches your eyes!

Just look at it, they still make a "his...hu..." sound from time to time.

Dong Mengshan, "???"

Depend on!

Anyway, please respect this exam competition and see other students?

But these three invigilators couldn't turn their eyes away at all!

Qian Mengmeng gave the answer to the third question in one go!