[填空题]
A tungsten filament used in a flashlight bulb sc:oa ixls, zu(s.3.doperacgr; ucb13p.efipq0+ c z1c) btes at 0.20 A and 3.2 V. If itsqc b cf3 p p)+i0z1.gruc;1ebc resistance at 20$^{\circ}\,C$ is $1.5\Omega$ what is the temperature of the filament when the flashlight is on? $^{\circ}\,C$
