Top student: All my teachers are academic whizzes!

Chapter 23: Execute first, report later!

"Han Chuan, you explain this problem."

Han Chuan, who had just stepped down from his seat, was called back to the podium by Fang Jianyu.

Without thinking much about Qu Zhiqiang's question, he picked up a piece of chalk and wrote the answer directly on the only remaining blank space.

"Because a stable horizontal orbit is circular, with its center on the cylindrical axis and a radius of R. On this orbit, the Lorentz force provides the centripetal force as qvB = mv²/R. Therefore, the horizontal kinetic energy of the particle on this orbit is E⊥=(1/2)mv²."

"Next, substituting v, we can get E⊥=(qBR)²/(2m)."

"The given value qB = m√(g/R) can be substituted into the equation to get E⊥ = mgR/2."

"This energy E⊥ is the energy generated when bouncing back and forth in the vertical direction, within the horizontal rotation of the magnetic field."

"The amplitude of the vertical kinetic energy Ez is equal to the driving power multiplied by half the period."

"Therefore, the coefficient C of the magnetic field's deflection effect on moving charges is exactly 1/2."

As he wrote, Han Chuan explained.

After finishing writing, he put down the chalk, looked at Qu Zhiqiang, the top student in the front row, thought for a moment, and then added a sentence.

"Of course, C is not always 1/2; this problem just happens to be a circular track. If it were a polygonal closed track, C would be different."

In the classroom, Qu Zhiqiang looked at the derivation several times, his lips moving as if he was digesting something, his eyes filled with a mixture of admiration, surprise, and shock.

A student who was more than ten points behind him in the last monthly exam is now able to solve competition problems that he couldn't even understand the answers to.

This complex feeling... he only wanted to say four words.

But he couldn't say it.

Because the facts were right in front of him.

This student, who was once dozens of places behind him in the physics monthly exam, is now standing at a height that he can't even see in the taillights.

.....

In the ten minutes that followed, apart from a question asked by Qu Zhiqiang, the physics class representative, no one asked any questions.

This is normal. For an ordinary class like Class 09, the competition questions that Fang Jianyu brought out to test Han Chuan were indeed too difficult.

Let alone a regular class like Class 09, even among the top students in Classes 01 and 02, the number of students who could solve this problem would be less than a handful.

After all, this is a major question in the semi-finals, which is the provincial competition, so the difficulty level is obvious.

If it were that easy to solve, the county's No. 1 High School wouldn't have gone several years without anyone making it to the national finals.

As soon as the physics teacher announced the end of get out of class, the previously quiet atmosphere in the classroom suddenly became as lively as a firecracker being lit.

"Holy crap! You solved even the challenging competition problem that Professor Fang set!?"

The first to explode was naturally Li Hao, his deskmate. No sooner had Fang Jianyu stepped out of the classroom than Li Hao jumped up from his seat, slapped Han Chuan on the shoulder, and stared at him with eyes as wide as saucers.

"You can even calculate that coefficient C is one-half?! I don't even know what that is!"

"Awesome!"

Sitting in his seat, Han Chuan was jerked to the side by the slap, and said with a smile, "When deriving the stable orbit through energy analysis in the magnetic field problem, the value of C is determined by the geometry of the horizontal orbit."

"This is also a basic concept in physics."

"Basic knowledge points?"

Upon hearing this, Li Hao looked as if he were listening to gibberish: "You call this basic knowledge points?"

"Hey, Rat, he's showing off! Beat him up!"

Sitting in the front row, Zhou Yu, his roommate, turned around and shouted to join in the fun.

"Come on, guys, it's time for our academic genius, Chuan, to experience 'flying a plane'!"

With that, Li Hao stood up and, together with his buddies, prepared to drag Han Chuan toward the classroom door.

This almost scared Han Chuan so much he peed his pants.

There was a game among high school boys called "flying an airplane," which basically involved several people lifting the target's arms and legs and using the boys' groins to ram them into trees, door frames, flagpoles, or similar objects.

Although jokes are usually done in a measured way, even "cooperation" with this thing can lead to irreversible damage due to operational errors.

He's still young, only 17 years old, and he doesn't want to become a "father-in-law" so early.

After breaking free from the crowd, Han Chuan waved his hand with a smile: "No, I'm only really good at this part. I still need to work on the other parts."

He was serious—although his physics level has improved rapidly, it is mainly focused on the intersection of mechanics and electromagnetism, which Professor Zhou Peiyuan has been teaching him recently. He hasn't finished systematically studying thermodynamics and optics yet.

But when these words were spoken, they were interpreted completely differently by the surrounding classmates.

"Showing off!"

"Brother Chuan, you've changed! You're no longer the academic underachiever we used to know!"

"Stop talking, I've already taken enough blows today."

"I declare! From today onwards, I will only copy Chuan Ge's physics homework. I don't trust anyone else's!"

The classroom was noisy and filled with youthful energy. Han Chuan was among the crowd, laughing and joking.

Who says a person can't have youth and the feeling of youth at the same time? He can!

.....

Before the commotion had subsided, Fang Jianyu, who had previously left the classroom, returned with a stack of documents in his hand.

Upon seeing the physics teacher arrive, the crowd surrounding Han Chuan scattered like birds and beasts.

"Please fill this out and send it to my office after you're done."

Fang Jianyu placed the registration form for the National High School Physics Competition (Provincial Division) and a stack of materials on Han Chuan's desk and began to speak.

"Take a look at the information below, and prepare well for this year."

"The exam is in September, so there are still three or four months left. If you have any questions, you can come to me anytime."

Normally, if you want a student to participate in a competition, you would definitely need to consult with the student's homeroom teacher.

But he didn't tell Cao Wen about this, for a simple reason: that old Cao would definitely not agree.

After all, participating in both math and physics competitions simultaneously is unprecedented in high schools in Baling County, a small county town.

On the one hand, the county's No. 1 High School has almost no students with such outstanding abilities.

Students who can participate in both math and physics competitions are mainly concentrated in the four prestigious high schools in Changsha, the provincial capital.

On the other hand, participating in both math and physics competitions at the same time will definitely present a major challenge in terms of energy and time allocation.

Given Han Chuan's talent, Lao Cao would definitely not agree to him participating in both the mathematics and physics competitions at the same time.

Therefore, Fang Jianyu chose to act first and inform Cao Wen later, having Han Chuan register first to make it a fait accompli.

Han Chuan's abilities are questionable, but he's sure he'll get into the second round of the physics competition, which is the provincial competition, without any problem.

What if he doesn't make it to the semi-finals in math?

After all, a math score of 140 in the county's top high school is not enough to qualify for the provincial competition.

But physics is different; he personally witnessed Han Chuan solve the semi-final questions using two different methods.

With this foundation, a little push could even get them into the national finals!

To make it to the national finals, you'd be a student that Tsinghua and Peking Universities would fight over!

.....

P.S.: There will be another update tonight, please vote with your monthly tickets to follow!