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

 

題目列表(包括答案和解析)

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(diǎn),X射線從K極發(fā)出

B.高壓電源正極應(yīng)接在P點(diǎn),X射線從A極發(fā)出

C.高壓電源正極應(yīng)接在Q點(diǎn),X射線從K極發(fā)出

D.高壓電源正極應(yīng)接在Q點(diǎn),X射線從A極發(fā)出

查看答案和解析>>

14-5-1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兩極間加上幾萬伏的直流高壓,則(    )

14-5-1

A.高壓電源正極應(yīng)接在P點(diǎn),X射線從K極發(fā)出

B.高壓電源正極應(yīng)接在P點(diǎn),X射線從A極發(fā)出

C.高壓電源正極應(yīng)接在Q點(diǎn),X射線從K極發(fā)出

D.高壓電源正極應(yīng)接在Q點(diǎn),X射線從A極發(fā)出

查看答案和解析>>

圖14-5-1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兩極間加上幾萬伏的直流高壓,則(    )

圖14-5-1

A.高壓電源正極應(yīng)接在P點(diǎn),X射線從K極發(fā)出

B.高壓電源正極應(yīng)接在P點(diǎn),X射線從A極發(fā)出

C.高壓電源正極應(yīng)接在Q點(diǎn),X射線從K極發(fā)出

D.高壓電源正極應(yīng)接在Q點(diǎn),X射線從A極發(fā)出

查看答案和解析>>

圖14-5-1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兩極間加上幾萬伏的直流高壓,則(    )

圖14-5-1
A.高壓電源正極應(yīng)接在P點(diǎn),X射線從K極發(fā)出
B.高壓電源正極應(yīng)接在P點(diǎn),X射線從A極發(fā)出
C.高壓電源正極應(yīng)接在Q點(diǎn),X射線從K極發(fā)出
D.高壓電源正極應(yīng)接在Q點(diǎn),X射線從A極發(fā)出

查看答案和解析>>

圖20-3-1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,需在K、A兩電極間加上幾萬伏的直流高壓,則

A.高壓電源正極應(yīng)接在P點(diǎn),X射線從K極發(fā)出

B.高壓電源正極應(yīng)接在P點(diǎn),X射線從A極發(fā)出

C.高壓電源正極應(yīng)接在Q點(diǎn),X射線從K極發(fā)出

D.高壓電源正極應(yīng)接在Q點(diǎn),X射線從A極發(fā)出

查看答案和解析>>


同步練習(xí)冊答案