如圖是一個(gè)三輸入端復(fù)合門(mén)電路,當(dāng)輸入為101時(shí),輸出為                 (填“0”或“1”).              

                                                                                                

                                                                                                                                       

練習(xí)冊(cè)系列答案
相關(guān)習(xí)題

科目:高中物理 來(lái)源: 題型:


如圖中虛線為勻強(qiáng)電場(chǎng)中與場(chǎng)強(qiáng)方向垂直的等間距平行直線,兩粒子M、N質(zhì)量相等,所帶電荷的絕對(duì)值也相等.現(xiàn)將M、N從虛線上的O點(diǎn)以相同速率射出,兩粒子在電場(chǎng)中運(yùn)動(dòng)的軌跡分別如圖中兩條實(shí)線所示.點(diǎn)a、b、c為實(shí)線與虛線的交點(diǎn).已知O點(diǎn)電勢(shì)高于c點(diǎn),若不計(jì)重力,則(                                           )                       

                                                                                            

    A.  M帶負(fù)電荷,N帶正電荷

    B.  N在a點(diǎn)的速度與M在c點(diǎn)的速度大小相同

    C.  N在從O點(diǎn)運(yùn)動(dòng)至a點(diǎn)的過(guò)程中克服電場(chǎng)力做功

    D.  M在從O點(diǎn)運(yùn)動(dòng)至b點(diǎn)的過(guò)程中,電場(chǎng)力對(duì)它做的功等于零

                                                                                                                                    

查看答案和解析>>

科目:高中物理 來(lái)源: 題型:


用多用電表的歐姆擋測(cè)量阻值約為幾十千歐的電阻Rx,以下給出的是可能的操作步驟,其中S為選擇開(kāi)關(guān),P為歐姆擋調(diào)零旋鈕.                                                                                          

(1)把你認(rèn)為正確步驟前的字母按合理的順序填寫(xiě)在橫線上                         

a.將兩表筆短接,調(diào)節(jié)P使指針對(duì)準(zhǔn)刻度盤(pán)上歐姆擋的零刻度,斷開(kāi)兩表筆        

b.將兩表筆分別連接到被測(cè)電阻的兩端,讀出Rx的阻值后,斷開(kāi)兩表筆       

c.旋轉(zhuǎn)S使其尖端對(duì)準(zhǔn)歐姆擋×1k                                                  

d.旋轉(zhuǎn)S使其尖端對(duì)準(zhǔn)歐姆擋×100                                                 

e.旋轉(zhuǎn)S使其尖端對(duì)準(zhǔn)OFF擋,并拔出兩表筆                                       

(2)正確操作后,多用電表的指針位置如圖所示,此被測(cè)電阻Rx的阻值約為      Ω.

                                             

                                                                                                        

查看答案和解析>>

科目:高中物理 來(lái)源: 題型:


如圖所示,電阻R1=8Ω,電動(dòng)機(jī)繞組電阻R0=2Ω,當(dāng)開(kāi)關(guān)S斷開(kāi)時(shí),電阻R1消耗的電功率是2.88W;當(dāng)開(kāi)關(guān)S閉合時(shí),電阻R1消耗的電功率是2W.若電源的電動(dòng)勢(shì)為6V,求開(kāi)關(guān)S閉合時(shí),電動(dòng)機(jī)輸出的機(jī)械功率.                                                                                                                                       

                                                                                                         

                                                                                                                                   

查看答案和解析>>

科目:高中物理 來(lái)源: 題型:


輯電路的信號(hào)有兩種狀態(tài):一是高電位狀態(tài),用“1”表示;另一種是低電位狀態(tài),用“0”表示.關(guān)于這里的“1”和“0”下列說(shuō)法正確的是(                                              )                                                                 

    A.  “1”表示電壓為1V,“0”表示電壓為0V

    B.  “1”表示電壓為大于或等于1V,“0”表示電壓一定為0V

    C.  “1”和“0”是邏輯關(guān)系的兩種可能的取值,不表示具體的數(shù)值

    D.  “1”表示該點(diǎn)與電源的正極相連,“0”表示該點(diǎn)與電源的負(fù)極相連

                                                                                                                                       

查看答案和解析>>

科目:高中物理 來(lái)源: 題型:


某同學(xué)設(shè)計(jì)了如圖所示的電路,該電路能夠測(cè)量電源E的電動(dòng)勢(shì)和內(nèi)電阻r,E′是輔助電源.A、B兩點(diǎn)間有一靈敏電流計(jì)G.                                                                                                            

(1)補(bǔ)充下列實(shí)驗(yàn)步驟:                                                                                               

①閉合開(kāi)關(guān)S1、S2,                                                使得靈敏電流計(jì)的示數(shù)為零,這時(shí),A、B兩點(diǎn)UA、UB的關(guān)系是UA                                                         UB,即A、B相當(dāng)于同一點(diǎn),讀出電流表和電壓表的示數(shù)I1和U1,其中I1就是通過(guò)電源E的電流.                                      

②改變滑動(dòng)變阻器R、R′的阻值,重新使得              ,讀出                                        

(2)寫(xiě)出步驟①②對(duì)應(yīng)的方程式及電動(dòng)勢(shì)和內(nèi)電阻的表達(dá)式              ;                         ,                     

                                                                                               

                                                                                                                                       

查看答案和解析>>

科目:高中物理 來(lái)源: 題型:


一同學(xué)將變阻器與一只6V,6~8W的小燈泡L及開(kāi)關(guān)S串聯(lián)后接在6V的電源E上,當(dāng)S閉合時(shí),發(fā)現(xiàn)燈泡發(fā)亮.按此圖的接法,當(dāng)滑片P向右滑動(dòng)時(shí),燈泡將(                  )                                        

                                                                                               

    A.    變暗         B.          變亮  C. 亮度不變       D. 可能燒壞燈泡

                                                                                                                        

查看答案和解析>>

科目:高中物理 來(lái)源: 題型:


下列說(shuō)法中正確的是(                                                  )                                       

    A.  物體的質(zhì)量不變,a正比于F,對(duì)a、F的單位不限

    B.  對(duì)于相同的合外力,a反比于m,對(duì)m、a單位不限

    C.  在公式F=ma中,當(dāng)m和a分別用kg、m/s2作單位時(shí),F(xiàn)必須用N作單位

    D.  在公式F=ma中,F(xiàn)、m、a三個(gè)量可以同時(shí)選取不同的單位

                                                                                                                               

查看答案和解析>>

科目:高中物理 來(lái)源: 題型:


一根輕質(zhì)細(xì)繩能承受的最大拉力是G,現(xiàn)把一重為G的物體系在繩的中點(diǎn),兩手先并攏分別握住繩的兩端,然后緩慢地左右對(duì)稱分開(kāi),若想繩不斷,兩繩間的夾角不能超過(guò)(                                  )        

    A.                 45° B.                 60° C.                 120°     D. 135°

                                                                                                                              

查看答案和解析>>

同步練習(xí)冊(cè)答案