【单选题】
并联电路中的总电流等于各电阻中的___。
A. 倒数之和
B. 相等
C. 电流之和
D. 分配的电流与各电阻值成正比
查看试卷,进入试卷练习
微信扫一扫,开始刷题

答案
C
解析
暂无解析
相关试题
【单选题】
___的一端连在电路中的一点,另一端也同时连在另一点,使每个电阻两端都承受相同的电压,这种联结方式叫电阻的并联。
A. 两个相同电阻
B. 一大一小电阻
C. 几个相同大小的电阻
D. 几个电阻
【单选题】
额定电压都为220V的40W、60W、100W三灯泡串联在220V的电源中,它们的发热量由大到小排列为___
A. 100W 60W 40W
B. 40W 60W 100W
C. 100W 40W 60W
D. 60W 100W 40W
【单选题】
已知电源电压为12 V ,四只相同灯泡的工作电压都是6 V,要使灯泡都能正常工作,则灯泡应___
A. 全部串联
B. 两只并联后与另两只串联
C. 两两串联后再并联
D. 全部并联
推荐试题
【单选题】
This kind of plant___a lot of water at all times.
A. assumes
B. limits
C. produces
D. requires
【单选题】
Uncle Sam sent him a___ bicycle as a birthday present.
A. red sports new
B. sports new red
C. new sports red
D. new red sports
【单选题】
I couldn't find my English-Chinese dictionary___.
A. anywhere
B. everywhere
C. nowhere
D. somewhere
【单选题】
The plane was about to___, and yet I left my ticket behind.
A. take off
B. take on
C. take up
D. take in
【单选题】
John succeeded ___ what he wanted.
A. to get
B. to getting
C. in getting
D. and getting
【单选题】
With a good command of reading skills, most students can manage to read ___as they could the year before.
A. as twice fast
B. as fast as twice
C. as twice as fast
D. twice as fast
【单选题】
Some famous singers live on the ___from their record sales.
A. salary
B. price
C. bill
D. income
【单选题】
Don't be too ___about things you're not supposed to know.
A. strange
B. amusing
C. curious
D. conscious
【单选题】
It was in 1969 ___the American astronauts succeeded in landing on the moon.
A. when
B. the moment
C. which
D. that
【单选题】
___people in the world are sending information by e-mail every day.
A. Several million
B. Many millions
C. Several millions
D. Many million
【单选题】
He___less time reading stories about film stars than before.
A. takes
B. spends
C. costs
D. pays
【单选题】
Selecting a mobile phone for personal use is no easy task because technology___so rapidly.
A. is changing
B. has been changed
C. will have changed
D. will change
【单选题】
The taxi driver always reminds passengers to ___their belongings when they leave the car.
A. keep
B. catch
C. hold
D. take
【单选题】
If the doctor had been available, the child _______.
A. would not die
B. could not have died
C. might not die
D. should not have died
【单选题】
If Mary___shopping this afternoon, please ask her to write a shopping list first.
A. will go
B. goes
C. went
D. has gone
【单选题】
These desks and chairs ___to the children in the mountain villages next week.
A. are sent
B. will send
C. have sent
D. will be sent
【单选题】
Every society has its own peculiar customs and ___of acting.
A. attitudes
B. behavior
C. ways
D. means
【单选题】
We will have a ___holiday after the exam.
A. two month
B. two-month
C. two month's
D. two-months
【单选题】
There ___a basket ball match this afternoon.
A. is going to be
B. is going to have
C. is going to is
D. is going to has
【单选题】
There's no food in the fridge. They ___shopping.
A. go
B. are go
C. are going
D. are going to go
【单选题】
They have planted ___trees in SaiBei, It's a "Great Green Wall" of trees.
A. million
B. millions
C. several
D. millions of