[填空题]
Electrons are accelerated bxhf)6 soa.4io j9h6)ryb ljm ,ebtqa;: pano9/b v-urt 0aw7pm6 vr))y 6.0 kV in a CRT. The screen is 30 cm wide and is 34 cm from the 2.6-cm-long deflection plates. Over what range must the horizontally deflectinaap:7 9 ) au6qtt erv0-)ob;v bwmpnr/g electric field vary to sweep the beam fully across the screen? $ \times10^{5 }\,V/m$ to $ \times10^{5 }\,V/m$
