After the filament was burned, the bulb went black, and all the apprentices gathered around the generator, their hands raised in the air, their smiles fixed on their faces, and the joyful atmosphere was swept away, and they looked at each other, with only embarrassment and confusion in their eyes.

The light bulb went black, they didn't know what was going on, they just saw the light flash, and then there was nothing......

Seeing this scene, the maid sighed silently, this group of apprentices is really a group of geniuses, the generator is directly connected to the light bulb, they can also think of this kind of thing.

But it was also her fault that she told them the principles without measuring the current, voltage, and resistance, and asked them to use these theories to 'make a generator' out of thin air, but until now, although they have understood the matter of voltage and resistance, they have never cared.

Just as 'magic' has never had a specific unit of measurement from beginning to end, even the arcanists of the Arcane Empire are the same, because they are all mages and can perceive the amount of magic, but earthlings can't, so they need to measure through foreign objects and make specific divisions for this.

With a unified standard, it is more convenient to carry out the next step of research, and the science of the earth has been developed under this rigorous yardstick.

So, that's why it's happening now!

They hadn't tried to measure the voltage or resistance, not even Raditz, who had become so accustomed to the things that mages could sense directly, that even he, a scholar who wanted to create an energy source that could be easily used by ordinary people, had subconsciously forgotten about it.

The maid was sure that they had never measured the voltage since the generator was built, and that they had not measured the rated voltage of the bulb, otherwise it would not have been the case.

The reason why the maid did not measure the voltage and resistance was also very clear, the first was because they did not have this habit, even the arcanists who called it 'bold but rigorous', the second was because they did not need it, and the third was because there was no 'standard unit' in this area in this world.

If you really want to count it, the maid is indeed at fault, because she made a mistake in the first place, she did not study the generator according to rigorous scientific thinking, she just told the scholars and mages about the same physical rules that she observed in this world as on earth, and asked them to build the generator as soon as possible.

When she first took office, she became much more impatient, and then she was so busy that she simply forgot about it—if it weren't for Cervantes mentioning it earlier, it might have been a long time before she remembered these scholars and mages who were still studying generators according to the laws of physics she had given.

It is worth mentioning that although on a macro level, the physical rules of the world of Assatom are very similar to those of the earth, but at the micro level, they are completely different, even the maid can't figure out what is going on, two different micro structures can form similar physical properties, I have to say, this is a very strange thing.

Since she has not been to any other world except the world of Assatom, not even the astral and outland, the maid is not sure if the other worlds are the same, but according to Cervantes and Ziegler, there is a high probability that the other worlds will be the same.

The reason why there is a problem now is that they have not measured voltage and resistance, the world of Assatom does not have a standard unit of 'energy', and naturally they do not have this habit, and until now, they have not realized what they have done wrong.

One by one, the apprentices gathered around the generator, which was still functioning well, but the light bulb had burned out.

“...... Is it because of the voltage?"

Unlike the apprentices, the old mage and the old scholar began to think about what was wrong when they saw this scene, and in the end, it was the old scholar who took the lead in asking the maid.

The maid nodded and replied, "It hasn't been checked, but it must be a voltage problem, whether it's because the voltage is too low or too high, it may burn the filament ......"

However, the maid was a little puzzled, it was too sudden, and the filament burned out as soon as the apprentices pressed the switch, and the bulb was connected to the circuit, was this also one of the manifestations of the difference between the world of Assatom and the earth? Or was the generator they had made too high?

"Didn't you get the light through the first test?" asked the maid, with a puzzle in her heart.

The old mage nodded: "We didn't do that because we were afraid that the generator's unstable operation would destroy the electric light, so we didn't do that in the first trial, and now it seems that ......"

The old mage sighed, now he felt about the same as the old scholar, he originally thought that the generator would be officially put into use after this test, but he didn't expect this test to tell them that they were working in the wrong direction before.

While their previous efforts weren't for nothing, the prototype is a complete no-brainer!

The head maid had already told them what voltage, resistance, and electricity were all about, but they didn't pay attention to it.

"Teacher ......"

The apprentices looked at them with sad faces, and then they remembered their teacher.

"The maid and the lord!"

After they turned their heads, they naturally spotted the black dragon and the maid.

The black dragon waved his hand and said happily, "You go on, you are busy with yours, and Sera and I will come over to see how the generator research is." ”

The speaker has no intention, but the listener has a heart, but Cervantes's words made the apprentices bow their heads in shame.

They didn't know when the maid and lord had been here or how long they had been there, but it was likely that their previous excited looks had been taken over by these two adults—and it was a shame to think about it now!

The experiment had just begun, and they were already shouting and screaming as if it had been successful.

The more I screamed at first, the more ashamed I felt now.

Seeing the depressed appearance of the students, the old scholar shook his head and sighed, and stood up: "Let's start again!"

The apprentices looked up in surprise and looked at the old scholar.

"Let's start over!" repeated the old scholar with a blank face.

"We were in such a hurry that we didn't measure any voltage, current, or resistance, so we hurried to prove ourselves - yes, we did make a generator, but it couldn't be used at all, what's the difference between that and not having it?"

The students stared blankly at the old scholar, one of their two teachers, as they heard him say this in an unusually firm tone.

Suddenly, my heart was very uncomfortable.

They were reluctant at first, but then felt they could build a world-famous machine, so after their Raditz teacher compromised, they often worked overtime, and it took less than two years to build the first working generator, before they had only learned some of the theories given to them by the maid master.

After that, they taught themselves 'mechanical construction' to design their first generator, which is a source of pride for them, albeit rudimentary.

When they confidently started the second trial, they were hit by a bolt from the blue - the generator was not working.

'It's too much of a rush!' the old mage sighed, not only of his students, but of himself.

"Let's start over......," the old mage also persuaded him, "It's not too late, it's still too late to measure the voltage and resistance of various materials and redesign a usable generator!"

They are indeed quite powerful, and although they use the perception ability of the mage, the maid still affirms their ability.

"Actually, you can take your time, the time left for you is not short. The maid also smiled and comforted.

Unfortunately, the generator could not be built, and the attempt to use electricity to join the production process was frustrated......