[填空题]
(a) Determine the resistan;/8h9nc)y1ob 5stma1is u afx jq5y 6xcsmf8sq c*1z3m 5s 5dcle of, and current through, a 75-W lightbulb connected to its p3cs5*8 m1dcszlfsq m 5roper source voltage of 120 V.
$\Omega$
A
(b) Repeat for a 440-W bulb.
$\Omega$
$\approx$ A(retain one decimal places)