Предмет: Физика, автор: artyomgrebenik

Определить силу, с которой однородное магнитное поле действует на проводник длиной 30 см, расположенный под углом 450 к вектору магнитной индукции, если сила тока в нем 500 мА. Магнитная индукция составляет 0,5 Тл.
(пожалуйста с Дано и решением)

Ответы

Автор ответа: DedStar

3

Ответ:

Объяснение:

Дано:

L = 30 см = 0,30 м

α = 45°

I = 500 мА = 0,5 A

В = 0,5 Тл

___________

F - ?

F = B·I·L·sin 30°

F = 0,5·0,5·0,3·0,5 ≈ 0,038 Н или 38 мН

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Английский язык, автор: инко2

Праздник Новруз любимый праздник. В этот день родители дарют подарки. Дома на столе поднос со сладостями. Во дворе зажигают костры. Дети прыгают через костёр. Все люди ходят в гости. ПОМОГИТЕ ПЕРЕВЕСТИ НА АНГЛИЙСКИЙ ЯЗЫК.

1 год назад

Предмет: Английский язык, автор: Barsa17

ПОМОГИТЕ УКАЗАТЬ ВЕРНУЮ ОПЦИЮ
Maurice Gerald reached the stream and finally fell asleep. But the pain of his wounds, once more returning, woke him. To go away from the spot was simply impossible. Any movement gave him pain. There was no alternative but stay where he was.
Suddenly Maurice heard little feet on the sand and excited breathing. The coyotes! The smell of blood had made them mad. The mustanger knew they would attack him. He had no weapon but a knife. His rifle and guns had been carried off by his horse. He drew the knife and prepared to defend himself.
Four or five wolves attacked the wounded man. Maurice shook them off, striking out with his knife. Some of the coyotes went away, but new ones appeared.
Suddenly the wounded man heard the sound of hoofs, followed by the loud barking of a dog. He called for help. But the horseman didn't hear him. The horse, or horseman passed on, but the dog — it was Тага! — broke through the bushes and rushed at the coyotes. It attacked two of the wolves. A third one could be attacked, but the frightened coyotes ran away.,
The man had no strength left. He drew the cloak over his face to cover it from the sun, and then he fell asleep. The dog lay down at his feet.
A few hours later the mustanger woke up. His faithful dog had saved his life, and would still protect, him against the attacks of coyotes. But it couldn't get him from the spot. And to stay there would be to die of hunger and of the wounds.
'But Тага may take a message to the hut,' he said. 'Come here, old fellow! I want you to play postman for me.'
Maurice found a card in his pocket. No pencil! He could do without it.
He broke a thorn off the closest bush and wrote something with the blood of a coyote. Then he tied the card to the neck of the dog and made it go to the hut.
After a while the mustanger was surrounded by the coyotes again.
This time Maurice had a plan. He took off his cloak and cut a few holes with his knife. Then he tore up his scarf in two parts and used them to tie the cloak to a tree, making a hammock. The mustanger climbed into the hammock. He thought there he was no longer in danger.
There was danger, however, which he had not seen. Very soon he realized he hadn't taken with him enough water. He could not return to the stream now. That would be certain death. It was a torture for the wounded man to see the fresh water of the stream and be unable to reach it. Suddenly he saw the coyotes get to their feet and rush off. What made them leave?
The mustanger turned on his knee and looked around. There were no coyotes. He listened. No sounds.
Maurice got out of the hammock and reached the stream. He once more looked around him and felt danger. He noticed the spotted yellow skin among the leaves. It was the jaguar. It was that dangerous animal that had made the coyotes go away. And now its eyes were on the wounded man. It was ready to attack Maurice.
|A7| Maurice didn't remember where he had lost his rifle and guns.
1) True 2) False 3) Not stated

А8 1 The coyotes attacked the mustanger when he was sleeping.
l)True 2) False 3) Not stated
A9 [ The dog saved the mustanger from the coyotes.
l)True 2) False 3) Not stated
A10| Maurice wrote the message in his blood.
l)True 2) False 3) Not stated
A11 It wasn't easy to make the dog leave Maurice and go to the hut.
l)True 2) False 3) Not stated
A12| Though water was not far from Maurice he was very thirsty.
l)True 2) False 3) Not stated
A13| It was the jaguar that made the coyotes run away.,
l)True 2) False 3) Not stated
A14| The jaguar turned out to be incredibly huge.
l)True 2) False 3) Not stated

1 год назад

Предмет: Русский язык, автор: sergeyamelin7

решить ребус р под ней черта под чертой за

1 год назад

Предмет: Математика, автор: zametka01

6(x+4)+13=4(x-0,5)-1

8 лет назад

Предмет: Русский язык, автор: taras2368

Пожалуйста помогите мне с одним заданием подчеркнуть слова В корне которых пишется буква ж дорожка Брошка гармошка сторожка Варежка чашка малышка кружка

8 лет назад