September 2018 1 296 Report

1. Korzystając ze wzoru na siłę magnetyczną F = B • I • l, wyprowadź jednostkę indukcji magnetycznej pola w układzie SI. Podaj jej nazwę.

2. Przewód miedziany ułożony jest w kierunku północ–południe. W jakim kierunku powinien w nim płynąć prąd elektryczny, aby umieszczona w pobliżu igła magnetyczna ustawiła się biegunem S na zachód? Przedstaw tą sytuację graficznie i uzasadnij odpowiedź.


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Wstaw DON'T , DOESN'T HAVE TO, DIDN'T HAVE TO, lub WON'T HAVE TO. 1. Tomorrow is Saturday, so I WON'T HAVE TO go to school. 2. I've already finisched my project, so I ............. do it in the holidays. 3. We bough't a takeaway pizza last night, so we ......... cook dinner. 4. Tom and Mary have got a washing- machine, so they go to the laundrette. 5. Steve passed his driving test, so he ........ take it again. 6 . Sally is very rich, so sche ....... work. 7. They bought tickets in advance, so they................. wait in the queue. 8. Jane's mother wakes her up, so she......... use an alarm clock. 9 . I have already read a book, so I ........ read it again . 10. Sam never makes a mess , so she ................... tidy his room very often. Zad. 4 Wstaw MUSTN'T lub NEEDN'T , DON'T HAVE TO. 1. A : You MUSTN'T do that again ! It was very naughty! B : I'm sorry. 2. A : Shall I put some petrol in the car ? B : No, you ............ . I did it this morning 3. A : You................ be late tonight. B : I won't. I'll be home early. 4. A : Shall I give you a lift? B : No, you.............. I'll go by taxi. 5. A : You....... forget to pay the bills today. B : I've already done it. 6. A : You................. lose the money I gave you. B : I'll put it in safe place. 7. A : You.................... buy a gift for daisy's birthday B : Alright. I'll just send a card. 8. A : Shall we take a picnic with us on Saturday? B : No, we ..................... . We're going to eat at restaurant. Z góry dzięki. ; *
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