I failed a course, and the system became my study supervisor.

Chapter 38 Midterm Exam and Electromagnetism Essay

April 28th, Sunday, 8:30 am.

[Examination subject: Electromagnetism.]

Examination time: 9:00～11:00.

Looking at the large, flamboyant characters on the blackboard, Xu Ling became energetic.

Unlike other teachers, Zhang Zhongyao did not emphasize examination discipline and seemed to have great trust in his students. He did not even require students to place their backpacks on the podium.

The previous question-answering tasks have completely ended today and can no longer be claimed.

But Xu Ling has already made a fortune.

[Points:
Study points: 500 points.

Inspiration points: 0. 】

Originally, there should have been 600 points, but Xu Ling got itchy hands and drew a prize, and then without any surprise, he got a piece of junk.

But 500 points is an astronomical figure, so you won’t feel bad about using it.

"Do you want to turn on focus mode? It consumes 5 study points per hour."

"Yes."

Xu Ling confirmed silently.

Xu Ling picked up the focus mode, which had not been used for a long time. It was to help him prepare for the upcoming exam and to test how much the current focus mode could help him.

Once the focus mode was turned on, it was the same feeling. Xu Ling felt that there were only desks, pens and test papers in front of him.

"Problem 1: A charged sphere with radius a has a volume charge density that varies with distance r from the center of the sphere as ρ = A√r. Find the electric field strength, electric potential, self-energy, and equivalent capacitance at locations inside and outside the sphere."

The questions were similar to those on a math analysis test, consisting entirely of problem-solving questions with no multiple choice or fill-in-the-blank options. But for Xu Ling, who had the focus buff, it was still a bit of a piece of cake.

However, not everyone can be like Xu Ling.

At this time, the male classmate behind Xu Ling was sweating profusely. The pen in his hand was like a used-up toothpaste, and he had to work hard to squeeze out a little ink.

The boy looked up at the clock and was immediately shocked.

It’s already been half an hour! What should I do? I haven’t even finished the first question yet!
It is often said that even a rabbit will bite when it is angry.

For a moment, he was in a panic and didn't know what to do. He chose to take a risk and stretched his neck to look at Xu Ling's paper.

However, Xu Ling was not short, and although his shoulders were not broad, they were able to cover the entire test paper just right.

The failure of the operation undoubtedly added fuel to the fire. The student's neck was stretched to the limit, and he wanted to stand up from the chair.

But Zhang Zhongyao is watching from above!
“Puff, puff!”

He changed his strategy and tried to attract Xu Ling's attention by making a faint sound.

But how could he know that Xu Ling had turned on the focus mode.

He kept making "puffing" sounds for a long time, and his lips became numb, but Xu Ling didn't react at all.

Is this person hearing-impaired? They can't even hear this! They must be doing this on purpose!
The male classmate was completely desperate and kept greeting Xu Ling in his heart.

Unable to plagiarize the answer, he could only grit his teeth and continue writing, looking up from time to time to see if Xu Ling had left any gaps that he could take advantage of.

But Xu Ling remained motionless, like a human sculpture.

The students behind them were completely defeated, and the questions that they could do before became unfamiliar to them.

……

"The exam is over. Please stop answering and wait for the papers to be collected."

The exam was over, and Xu Ling just came out of his concentration mode, and was filled with admiration.

The classmate behind him completely gave up resistance and slumped in his chair with empty eyes, as if he had lost hope.

But he was still a little unwilling. Seeing Xu Ling finally move, he asked unkindly, "Didn't you hear me calling you during the exam just now?"

Huh? Call me?

Xu Ling turned around with a confused look on his face and said, "I didn't hear it?"

It doesn’t seem like an act, but I’m really angry!

The classmate's mentality exploded, the corners of his mouth twitched constantly, and he said tremblingly:

"I didn't hear it, no...it's okay, nothing important."

Why would you call me if you have nothing to do? Boring.

Xu Ling shook his head and turned away quietly. At this time, Zhang Zhongyao, who had finished counting the test papers, cleared his throat and said:

"I'd like to take this opportunity to talk about my short essay on electromagnetism."

A short essay? What kind of essay?
In an instant, the students in the audience were all confused.

Zhang Zhongyao continued, “Short essays are a common practice in our electromagnetics course and account for eight points in the final comprehensive grade.

Now that the midterm exam is over, we are halfway through the course. So you can start writing now.”

"What is the content of the paper?" asked a student in the front row.

"The main topic is of course electromagnetism, but there is no limit to the minor topics. Anything related to electromagnetism is fine."

Zhang Zhongyao explained.

"Even content like the history of electromagnetism is okay?"

Another classmate asked.

"Yes, I agree with all of it."

Zhang Zhongyao nodded.

"Also, I will evaluate these short essays and select one or two as outstanding essays. I will buy prizes for the winning students out of my own pocket."

Zhang Zhongyao added with a smile.

No restrictions on content? Interesting. There are also prizes.

only--

Why didn’t the system release any tasks?

According to Xu Ling's experience, as long as it involves academic activities with competitive elements, the system will immediately issue tasks.

But this time, no.

why?
Is it because of its unofficial nature? Is it because the specifications are too small?
Xu Ling kept speculating and became less interested in the essay.

[Speechless, why do I still have to write a short essay! ]

This is a penguin text message sent by Lin Yuxin.

【From what the teacher said, the requirements shouldn't be too high.】

Xu Ling comforted him.

[No matter how difficult it is, I have to write it! T^T]

Lin Yuxin seemed extremely reluctant to write the essay.

Not knowing what to reply, Xu Ling typed a smiling emoticon.

What the hell is this mysterious smile?

Lin Yuxin was speechless and replied with a middle finger emoticon of contempt.

The battle of emoticons between the two has officially begun.

Lin Yuxin's emojis are endless. But Xu Ling only uses the default yellow face emojis, which he uses over and over again.

Soon, Xu Ling admitted defeat.

Lin Yuxin's information is back on track.

[Hey, do you have a topic you'd like to write about? ]

What topic do you want to write about?
Xu Ling didn't have much idea for a moment.

After thinking for a long time, he tentatively typed out a few words:
[Magnetic monopole.]

Since the class on magnetism had just begun, Lin Yuxin was confused.

【what? 】

Xu Ling had no choice but to explain to her, but he himself didn't really understand it.

However, it was more than enough to fool Lin Yuxin.

After talking about magnetic monopoles, Xu Ling also gave Lin Yuxin some thoughtful advice, asking her to consider topics like Gauss's theorem and loop theorem, which have more rigorous theoretical foundations and more information available, and are more suitable for her to write a paper.

Lin Yuxin agreed hesitantly.

……

(End of this chapter)