A.高壓電源正極應(yīng)接在Q點.X射線從A極發(fā)出B.高壓電源正極應(yīng)接在Q點.X射線從K極發(fā)出C.高壓電源正極應(yīng)接在P點.X射線從A極發(fā)出D.高壓電源正極應(yīng)接在P點.X射線從K極發(fā)出 查看更多

 

題目列表(包括答案和解析)

圖為X射線管的結(jié)構(gòu)示意圖,E為燈絲電源.要使射線管發(fā)出X射線,須在K、A兩電極間加上幾萬伏的直流高壓(  )

A.高壓電源正極應(yīng)接在P點,X射線從K極發(fā)出

B.高壓電源正極應(yīng)接在P點,X射線從A極發(fā)出

C.高壓電源正極應(yīng)接在Q點,X射線從K極發(fā)出

D.高壓電源正極應(yīng)接在Q點,X射線從A極發(fā)出

查看答案和解析>>

圖為X射線管的結(jié)構(gòu)示意圖,E為燈絲電源.要使射線管發(fā)出X射線,須在K、A兩電極間加上幾萬伏的直流高壓(  )

A.高壓電源正極應(yīng)接在P點,X射線從K極發(fā)出

B.高壓電源正極應(yīng)接在P點,X射線從A極發(fā)出

C.高壓電源正極應(yīng)接在Q點,X射線從K極發(fā)出

D.高壓電源正極應(yīng)接在Q點,X射線從A極發(fā)出

查看答案和解析>>

圖為X射線管的結(jié)構(gòu)示意圖,E為燈絲電源,要使射線管發(fā)出X射線,須在K、A兩電極間加上幾萬伏的直流高壓
[     ]
A.高壓電源正極應(yīng)接在P點,X 射線從K 極發(fā)出    
B.高壓電源正極應(yīng)接在P點,X射線從A極發(fā)出    
C.高壓電源正極應(yīng)接在Q點,X射線從K極發(fā)出    
D.高壓電源正極應(yīng)接在Q點,X射線從A極發(fā)出

查看答案和解析>>

圖為X射線管的結(jié)構(gòu)示意圖,E為燈絲電源,要使射線管發(fā)出X射線,須在KA兩電極間加上幾萬伏的直流高壓       

A.高壓電源正極應(yīng)接在P點,X射線從K極發(fā)出

B.高壓電源正極應(yīng)接在P點,X射線從A極發(fā)出

C.高壓電源正極應(yīng)接在Q點,X射線從K極發(fā)出

D.高壓電源正極應(yīng)接在Q點,X射線從A極發(fā)出

查看答案和解析>>

圖為1射線管的結(jié)構(gòu)示意圖,E為燈絲電源。要使射線管發(fā)出X射線,須在K、A兩電極間加上幾萬伏的直流高壓,

A.高壓電源正極應(yīng)接在P點,X射線從K極發(fā)出

B.高壓電源正極應(yīng)接在P點,X射線從A極發(fā)出

C.高壓電源正極應(yīng)接在Q點,X射線從K極發(fā)出

D.高壓電源正極應(yīng)接在Q點,X射線從A極發(fā)出

查看答案和解析>>


同步練習冊答案