[填空题]
(a) Determine the res,z,l.we1j 5:(n*z mbw:j glcbsof9w f isp+ z*ow hjid7p 027ioitance of, and current through, a 75-W lightbulb connected to its proper source voltdp *wzoh7 o2 ii7i+0pjage of 120 V.
$\Omega$
A
(b) Repeat for a 440-W bulb.
$\Omega$
$\approx$ A(retain one decimal places)