Cho một mạch điện gồm hai điện trở r1 = 15 ôm và R2 = 10 ôm mắc song song với nhau giữa hai đầu đoạn mạch có một hiệu điện thế không đổi là 12V A ) tính điện trở tương đương của mạch điện B) tính cường độ độ dòng điện qua mỗi điện trở và cường độ dòng điện trong toàn mạch

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Ex1: Complete the sentences with “although/ despite/ however” 1. _______________ the restaurant’s good reputation, the food was terrible. _______________ the restaurant has a good reputation, the food was terrible. The restaurant has a good reputation. _______________, the food was terrible. 2. _______________ it didn’t stop raining, we didn’t cancel our picnic. _______________ the rain, , we didn’t cancel our picnic. It didn’t stop raining. We didn’t cancel our picnic,______________. 3. Mary still bought the watch, __________ it had a high price. Mary still bought the watch __________ its high price. The watch had a high price. Mary, ___________, bought it 4. _______________ the fact that I was late for school, my teacher didn’t punish me. _______________ I was late for school, my teacher didn’t punish me. I was late for school. My teacher didn’t punish me, ___________. 5. _______________ I invited Jim to my party, he didn’t come. _______________ my invitation to the party, Jim didn’t come. I invited Jim to the party. _______________, he didn’t come. 6. I don’t want to watch this film_______________ it has many good reviews. I don’t want to watch this film _______________ its good reviews. The film has many good reviews. I don’t want to watch it, _______________. 7. _______________ there are many challenges, Tom won’t give up his dream. _______________ many challenges, Tom won’t give up his dream. There are many challenges.__________, Tom won’t give up his dream. 8. _______________ I studied very hard, I failed the exam. _______________ studying very hard, I failed the exam. I studied very hard. I,__________, failed the exam.