Two electric bulbs, rated at (25 W, 220 V) and (100 W, 220 V), are connected in series across a 220 V voltage source. If the 25W and 100 W bulbs draw powers P 1 and P 2 respectively, then:
Text Solution
Verified by ExpertsThe correct answer is:
C
= 
= 1936 Ω Ω
= 484 Ω Ω
= 
= 
= 
Amp
P 1 = i 2 R = 
× 1936 = 16 W
P 2 = 
× 484 = 4W
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