"When the ideal transformer is working normally, if the load connected to both ends of the secondary coil is increased, what will happen to the current in the secondary coil?"
Class 2 (1) of Shuren Middle School is taking physics class. Yang Heyu seldom deserted during class, but during this time he often looked out the window.
Chengdu seldom sees the sun, and it is even more gloomy after autumn. Finally, a withered yellow leaf floated down the clear glass and landed on the red-painted wooden frame.
Yang Heyu couldn't help opening the window and took the leaf over.
He thought: It's already so cold, and there is still no news from Shen Shen. I don't know if she is cold or not? OK¡¡
"Yang Heyu, come and answer this question."
The arm at the same table brushed Yang Heyu, he turned his head and asked with his eyes.
"Yang Heyu!"
Hearing the teacher's roll call, Yang Heyu quickly stood up with a dazed expression.
"You come to answer this question."
Yang Heyu looked at the empty blackboard, feeling a little embarrassed, but fortunately, his deskmate knocked on the paper on the table, and pointed to the fifth question on the mimeograph paper.
Yang Heyu quickly grabbed the paper to take a look, and replied loudly: "The current in the secondary coil will increase."
The physics teacher gave a "hmm" and replied: "The answer is correct. Even if you can do it, you should listen to it. Sit down."
After class, Lu Bowen came to inspect as usual, and as soon as he communicated with the physics teacher after class, his eyes flew to Yang Heyu.
Yang Heyu saw it at a glance. He has always been self-conscious in his studies since he was a child, and he never needs anyone to chant sutras by his side. But since he was divided into classes, changed to a new head teacher, and met Teacher Lu, Yang Heyu finally met his nemesis.
This Mr. Lu really loves nagging, of course he is not just staring at Yang Heyu, but every student will be nagged.
Yang Heyu simply lay down on the table and closed his eyes to rest his mind.
But just like that, Lu Bowen didn't let him go, and within three minutes, Lu Bowen's cry pierced through Yang Heyu's ears.
Yang Heyu raised his head reluctantly, but saw Lu Bowen standing on the podium looking at him from a distance, tapping and tapping on the podium with one hand.
The platform of the podium was blocked by a ten-centimeter fence, so he couldn't see clearly, but in a blink of an eye, he found some students were holding letters in their hands.
Yang Heyu understood immediately, he immediately jumped up and ran up to the podium.
"Don't be rash!" Lu Bowen picked up the letter, looked at the postmark, and said, "This time it's a letter from Shanghai. Look at your dark circles, you haven't slept enough. Haste is wasteful, If you don¡¯t rest well at night, it¡¯s easy to miss the class during the day. I see that you have done well in the last few exams, but studying is a protracted battle, and you have to combine work and rest. Go on.¡±
Yang Heyu's listlessness was indeed caused by insomnia, but his sobriety medicine had already arrived, and his chest was pounding like a war drum.
This letter is much thinner than expected, and what's even more strange is that there is no address left.
Yang Heyu tore it apart anxiously, and he let out a long sigh of relief when he saw Shen Shen's familiar handwriting.
"Brother Xiaoyu:
Hello Zhanxin.
I haven't written to you for a long time, are you in a hurry? I'm in Shanghai now, so I can't say a word, but everything is safe, don't worry about it.
Shanghai is so beautiful, so fashionable, and so exciting. Being here often feels like a dream.
Brother Xiaoyu, I want to say goodbye to the past, but I don¡¯t want to say goodbye to you.
However, please forgive me for not being able to write to you often, because I am too busy, and I want to stay here to learn piano, learn English, and learn many things that I have never touched before.
Brother Xiaoyu, I really want to grow up quickly and be a full-fledged bird, where I can go wherever I want.
I think there will be such a day.
People from Shanghai can't understand the way they speak, but I quite like the tune. They never say goodbye, let me teach you one of their farewell words: goodbye.