Start with a blind date

The last question of the physics exam was too difficult, and a lot of people were stumped.

But this question accounted for one-third of the total score.

If this question is not done correctly, it will be very difficult for them to pass this test paper!

Fang Xueqi is the epitome of many students.

When they picked up the physics test paper, they found it difficult at first, and then comforted themselves that it was difficult for you and everyone else.

Then they started to answer the questions, and even guessed and got confused until the last question, only to find that this question was extremely rare, and it was a super-class question that they had never seen before.

But this last question, the total score accounted for one-third of the physics subject.

Want to do it, there is no way to start.

But if you don't do it, you will definitely fail.

In this way, Fang Xueqi and many other candidates fell into a dilemma.

Some candidates who were not determined, even tore up the test papers directly, and then threw them on the ground to give up the test.

This is the viciousness of the Jinling Education Bureau. They are open and fair on the surface.

Let all private universities in the city take the entrance examination together.

But in the test paper questions, they have already dug a hole!

Chapter 557 Early submission

Seeing that the test paper was taken away, Fang Xueqi was about to yell.

But looking sideways, Qin Chen actually took it?

Looking at Qin Chen again, Fang Xueqi made a silent gesture.

Then, Qin Chen began to scribble and correct Fang Xueqi's physics test paper.

"Xueba is helping me with the test paper?" Fang Xueqi muttered to herself.

Qin Chen didn't care about Fang Xueqi, and now there is not much time left, he wants to help Fang Xueqi complete the test paper as soon as possible.

In fact, just now, Qin Chen decided to grab Fang Xueqi's test paper and help her write it himself.

In order to avoid the embarrassment of running out of time.

Qin Chen started writing 10 minutes before the end of the exam.

It took him a few minutes to finish his test paper, and now it is estimated that there are only about 5 minutes left before the test.

In such a short time, Qin Chen was sure to write the answer on the draft paper.

But after Fang Xueqi read the answers, she didn't have time to write them down on her test paper.

It was precisely because of this consideration that Qin Chen decided to help Fang Xueqi do it himself.

This also saves trouble, as the saying goes, a good person will do it to the end, and the Buddha must be sent to the west!

After taking the test paper, Qin Chen directly revised the answers based on Fang Xueqi's.

He looked at the question, then glanced at Fang Xueqi's answer.

Qin Chen found that Fang Xueqi had done a lot, and the correct rate was not even 50%.

Well, this Fang Xueqi is so bad at physics!

Qin Chen sighed and began to help Fang Xueqi correct the answer.

In fact, it's not that Fang Xueqi's poor grades in physics, you must know that most of the other third-year candidates in the examination room did not even have a 50% correct rate!

After all, this physics exam is too difficult.

Fang Xueqi's physics test paper chose to fill in the blanks, and Qin Chen finished the revision in only 2 minutes.

Well, there is still time, let's look at the answers.

Qin Chen turned over and saw the last question of the third-year physics exam, which was the final question.

I saw this question asked like this.

"As shown in Figure A, there is a long straight thin metal wire in a vacuum, and a metal cylinder with a radius of is placed coaxially with the wire. Assuming that the wire uniformly emits electrons at the same rate along the radial direction, the mass of the electron is known to be , and the charge is .The interaction between the outgoing electrons is not considered.

(1) The initial velocity of the emitted electrons can be measured with the following two experimental schemes:

a.Between the cylinder and the wire, only a constant voltage is applied;

b.Inside the cylinder, only a uniform magnetic field parallel to it is applied. "

After reading the question, Qin Chen couldn't help being slightly taken aback.

This question is a bit interesting. It can be said that the design is very clever, and it involves several knowledge points.

Knowledge about initial velocity, electromagnetic field, and voltage.

Although Qin Chen felt that this test question was difficult, it was nothing more than that.

No matter how difficult this question is, it can't catch up with the college entrance examination paper of Qin Chen's previous life.

Moreover, this topic did not reach the high school level.

At best, it can catch up with Qin Chen's physics paper for the senior high school entrance examination in his previous life.

You know, Qin Chen was a top student who graduated from Dongning University in 987 in his previous life.

Solving this kind of junior high school physics knowledge is not easy.

Soon, Qin Chen's answer was written below the question.

"When the voltage is or the magnetic induction is , there are no electrons reaching the cylinder. Calculate the initial velocity of the outgoing electrons respectively"

Because of the many questions in this question, the knowledge points involved are also very complicated.

So Qin Chen wrote half a page of the test paper.

The exam papers in this world are about the same as A4 paper.

Qin Chen wrote half a page of A4 paper, which is equivalent to writing thousands of words.

But after writing this topic, I looked up and saw that only 2 minutes had passed.

There are still a few minutes left before the end of the physics exam.

Looking at the time, Qin Chen couldn't help feeling a little emotional.

"Hey, I haven't done a physics problem for a long time. It took me 2 minutes to write such a simple physics problem. It seems that I really answered that sentence. Use it or lose it."

Qin Chen let out a long sigh.

If other third-year graduate students knew, Qin Chen's thoughts at the moment.

It is estimated that they will spit out a mouthful of old blood.

Qin Chen did this and the last physics problem. It took only 2 minutes from reviewing the question to writing the answer.

Now it's actually too slow.

Does this speak human words?

Besides, after Qin Chen finished the last question, he was going to throw the test paper back to Fang Xueqi.

At this time, Fang Xueqi had been waiting like ants on a hot pot.

In her heart, she expected Qin Chen to help him make the right answer, but at the same time worried that Qin Chen might not be able to do it.

After all, this physics exam is so difficult, especially the last question.

It is obviously beyond the outline, and things like electromagnetic voltage have been designed.

Don't say that she is a graduate student of the Chinese Department, I am afraid that it is a graduate student majoring in science who encounters this problem.

Without all the hours, there is no way to make the correct answer!

"Qin Chen, can't you just give me the answer, and you have to take away my test paper, what can you do if you can't do it later?"

Fang Xueqi's face was anxious, and she looked at Qin Chen who was writing vigorously with dewy eyes, almost crying.

As time passed by, Fang Xueqi's face became more and more serious.

While she was waiting anxiously, Qin Chen finally put down his pen.

"Are you done? No, it's only been a few minutes. It's not so fast even if you correct the multiple-choice questions before?" Fang Xueqi said in her heart.

But just when Fang Xueqi was thinking this way, Qin Chen turned around and showed an angelic smile.

Seeing Qin Chen showing such a confident smile, Fang Xueqi's gloomy heart melted like ice and snow.

I feel warm all over.

"It's done?" Fang Xueqi murmured softly.

Qin Chen nodded slightly, then stood up and handed in the paper.

I got off my seat, because Fang Xueqi's seat was next to the aisle.

When Qin Chen walked to the edge of her seat, taking advantage of the teacher not paying attention, he threw his test paper back to her again.

Then, Qin Chen walked away.

Looking at the examination paper in front of Fang Xueqi again, I saw that there were traces of alteration in many places on it.

Qin Chen revised 30 multiple-choice questions, nearly two-thirds.

Fang Xueqi only did one of the ten fill-in-the-blank questions before, but now she has written all of them.

Looking at the last big question, I actually finished writing it densely.

Fang Xueqi looked at the process and found that there was nothing wrong, so she substituted the data in to check the calculation, and it turned out to be correct.

Rumble!

Fang Xueqi was like five thunderbolts!

She never imagined that Qin Chen could do it in such a short period of time.

Help her revise all the test questions, even help her finish the last big question!

Seeing this test paper, Fang Xueqi immediately realized a problem.

It is her physics test results this time, which can definitely occupy a great overall score advantage.

With a perfect score of [-] points, Fang Xueqi didn't expect to get so many points in the test.

But looking at it now, I am afraid that more than ninety points is no problem.

Suppressing the excitement and excitement, Fang Xueqi raised her hand to signal the teacher that she would hand in the paper in advance!

Chapter 558 I Brought You Breakfast

Because Qin Chen only started writing the answers on the test paper in the last 10 minutes of the test.

So, those candidates sitting next to him now.

They all agreed that Qin Chen must have failed in this subject.

Especially since Qin Chen handed in the papers ahead of time, it seemed that he had completely given up on physics.

These students were very knowledgeable and didn't intend to go out to disturb Qin Chen.

As for Qin Chen, just two steps away, senior sister Fang Xueqi chased him up from behind.

"Qin Chen, wait for me!" Fang Xueqi said.

Hearing someone calling him from behind, Qin Chen had no choice but to stop.

He knew that the voice belonged to Fang Xueqi.

This time I helped her get a high score in the physics test again, probably because I wanted to tell myself to thank him.

However, Fang Xueqi couldn't give what Qin Chen wanted most at this time.

What he wants is the devouring progress of the Heavenly Dao system here.

Although she knew that Fang Xueqi's family was rich, it had nothing to do with Qin Chen's half a dime.

He also didn't want Fang Xueqi to give him cash as a reward.