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Electricity MCQ Class 10 Question 14. The resistance of hot filament of the bulb is about 10 times the cold resistance. What will be the resistance of 100 W-220 V lamp, when not in use? (a) 48 Ω (b) 400 Ω (c) 484 Ω (d) 48.4 Ω

Electricity MCQ Class 10 Question 14. The resistance of hot filament of the bulb is about 10 times the cold resistance. What will be the resistance of 100 W-220 V lamp, when not in use?
(a) 48 Ω
(b) 400 Ω
(c) 484 Ω
(d) 48.4 Ω

Grade:12th pass

1 Answers

Pawan Prajapati
askIITians Faculty 8741 Points
22 days ago
Answer: c

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