Question

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15. Two bulbs have the following ratings:
1. 40 W, 220 V
2. 20 W, 100 V
The ratio of their resistance is
(a) 1:2
(b) 2:1
() 1:1
(d) 1:3​

Answer 1

Answer:

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Explanation:

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Answer 2

Explanation:

isa sahi answer 121:50 ho ga isa mai se koi nahi hoga