1.一导体两端加上5v电压时,通过的电流为0.2A,如果加上10v电压时,通过的电流为多大?

问题描述:

1.一导体两端加上5v电压时,通过的电流为0.2A,如果加上10v电压时,通过的电流为多大?
英语;
句型转换
1.he was bought a red coat.she has bought a red coat,too.(同义句)
he was bought a red coat.____ _____she.
2.l am sure that martin will achieve his dream.(同义)
l am sure that martin's dream wil _____ _____.
6.mr yang is a teacher,and he wears thick glasses.(同义)
mr yang is a teacher ____ thick glasses
7.how's your project getting along?(同义)
how are you getting ____ _____ your project?
12..jenny keeps healthy _ by_ doing_sports_(划线提问)
____ _____ jenny ____ healthy?
18.jim has finished his homework,too(否定句)
jim ____ finished his work,____.
16.mr read will be unhappy about it .(反义疑问)
mr read will be unhappy about it ,____ ____?

第一题,很简单,因为电压/电流等于电阻,电阻不变,电压翻倍,电流肯定也翻倍,所以电流是0.4A.
也可以先算出导体的电阻:电压/电流就是25欧姆,那么10/25=0.4A
英语部分
第一句语法就错了,根本就似乎没有was的吧,人买衣服还是衣服被人买啊
答案是So did she
2.come true
6.with
7.along with
12.How does keep
18.hasn't either
16.won't he