"First of all, the diode, which has a unidirectional conduction function, can block the flow of reverse current." After speaking, Wu Bin pointed to the next, "Electrolytic capacitors have the function of isolating DC circulation and accumulating electric energy, and can be used for charging and discharging. ”

"Finally, there is the resistor, because it has the function of blocking the flow of current, so when combined with an electrolytic capacitor, the charging and discharging time of the circuit can be changed."

"Smack, smack, smack."

After Wu Bin finished answering, Wei Tianshuo applauded very affirmatively.

"It seems that you have a very good and well-organized solution to the experimental problems, but you are embarrassing the teacher now."

"Huh?" Wu Bin looked at the teacher with a puzzled expression.

"Actually, this is a question I made myself last year, and the first question stumped many outstanding students, so I chose it as a meeting gift for all new students."

After speaking, Wei Tianshuo picked up the chalk and wrote three words on the blackboard.

【Cue Card】

"The purpose is to explain the difference between the finals and the semi-finals, because the experimental questions have their ladder, if you can't do the first question and answer, then you can't do it at all, so you will have a chance to apply for a cue card."

"Is it so conscientious?" Wu Bin couldn't help but sigh when he heard that there was such a preferential policy.

"Of course, it can't be so conscientious, as long as you apply for a prompt card, then the 5 points of this first question will be directly gone, and you will be deducted 5 points, of course, the premise of the inverted 5 points is that you will make the whole question later, and if you don't make it, you won't get a point."

"Oh~" Wu Bin nodded knowingly.

At this point, Wu Bin understood that he didn't play cards according to this teacher's routine, and directly solved the first question, so that the teacher couldn't say the sentence "No idea, right?" In the finals, you'll have a new choice when you're running out of ideas. Something like that.

But this can only say that this teacher is too good at picking people, and Wu Bin doesn't know if others can do this experimental question, but now for Wu Bin, the experimental question of electricity is really the most confident piece of his now.

After the award, Wu Bin returned to the school, naturally it was impossible for him to give a report and give an acceptance speech all day, and most of the time he must still be studying.

In the process, Wu Bin found that he seemed to be really talented in experimental questions, whether it was the previous [real questions] found by Bi Wanqing, or the experimental questions marked as three-level difficulty on the "High School Physics Competition Practical Exercise" and "New Physics Experiment", Wu Bin accepted them very quickly.

Especially the part of electricity, which may be the reason for the [Controlling Thunder and Lightning] talent, which is really like a tiger with wings.

"Okay, the joke is here, I'm still very happy to see that there are students who can solve the first question so easily, next time I go to the laboratory, the second question is still answered by you, okay, go back and sit down."

Nodding, Wu Bin returned to his seat, and before he could look up at the blackboard, all kinds of whispered praises poured in from all directions.

"Wu Shen is awesome!"

"He is worthy of being a sweeping monk."

"Looking forward to Wu Shen's next performance."

……

After hugging his fists in return, Wu Bin was still a little proud in his heart, it seemed that he was still very good at the experimental problem, even in this class that was all elites.

In the next hour or so, Wei Tianshuo told Wu Bin a lot of competition experiences, supplemented by various topics, it can be said that the purpose of the lecture is very clear and clear, and there is no feeling of listening to the clouds.

"Okay, let's rest for twenty minutes, and we'll move on to the light later."

Wei Tianshuo said while wiping the blackboard.

"Whew~"

Hearing the word "rest", all the students stretched their waists and moved their necks and wrists.

Li Yan stretched his waist and originally planned to go to Wu Bin to mask him, but when he looked at his position, he found that he was no longer there.

"Teacher Wei." At this time, Wu Bin ran to the podium with a piece of scratch paper.

"What's wrong?" Wei Tianshuo asked while wiping the blackboard.

Wu Bin held up the draft paper, "Just now you said that the question is how many times can increase the light intensity near the bright spot in the center, why don't you calculate the exact value?" ”

"Oh, here, because it's enough to estimate the number of values, because you see, here's Pingguang here, and it's gathered to ......."

Glancing at Wu Bin, who was on the podium, Li Yan shrugged his shoulders and couldn't help complaining: "Don't you know what the word rest means?" ”

In the end, it was not until the end of the 20-minute break that Wu Bin nodded to Wei Tianshuo in gratitude and sat back in his place.

This kid is really interesting. ’

Wei Tianshuo, who took a sip of tea to moisten his throat, picked up the chalk and continued to lecture.

Until six o'clock in the evening, Wei Tianshuo saw that it was almost time to eat, so he erased the contents of the blackboard and said, "I informed you that you have brought all the books you want to bring, right?" ”

"Brought it." The students below replied in unison.

"Well, bring "Gao Miao" tomorrow, and I'll tell you a few selected competitive experiment questions, okay, let's eat, where is the cafeteria?"

"Yes." The students nodded.

"Well, then go back to the dormitory to rest after eating, and come back to the classroom at 9 o'clock tomorrow morning."

"Goodbye, teacher."

Waving to the teacher, several students left the classroom.

"Yes, goodbye." Wei Tianshuo waved his hand to his classmates, then subconsciously looked behind him, and was surprised to find that Wu Bin didn't come over this time, but when he looked up again, he found that he was still sitting in his place.

"Wu Bin, aren't you going to eat?" Wei Tianshuo asked.

"I'll go when I'm done with this question." Wu Bin raised his head and replied.

At this time, Li Yan on the side couldn't help but complain: "Wu Shen, do you know what a combination of work and rest is?" ”

"I'm not just relaxing, it's so much fun to do the questions." Wu Bin replied.

"I ......" Li Yan was choked for a long time, and finally said "Wu Shen is awesome!" Then he went to eat.

Wei Tianshuo smiled after listening to Wu Bin's words, since he started teaching these children, he has always felt that Wu Bin is very special, and his performance is indeed as he expected, it is indeed very interesting.

Pretending to work hard and really hard, as a senior teacher, he can easily discern it.

"Let me see what question to do." After wiping the blackboard, Wei Tianshuo walked down, put his hands behind his back and bent down to look at Wu Bin's notebook.

"That's the wavelength question that the teacher wrote just now."

"Didn't you say that this is for you to go back to the dormitory and do it again, do you know what homework is?"

"Isn't I impatient, this question looks so interesting." Wu Bin said with a bright smile.

"Hahaha, okay, okay. The teacher will accompany you for a while. ”

"Don't, teacher, go eat when you're hungry."

"I'm not hungry, I feel full when I look at your eating picture."

Wu Bin smiled awkwardly after understanding, while Wei Tianshuo laughed even louder.

PS: The second more asks for a recommendation vote~ There should be a third more, en...... Probably.