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Question

Two resistors when in series have an effective resistance of 25 Ω & when in parallel have an effective resistance of 4 Ω. Calculate the value of individual resistances.


A

2 Ω and 50 Ω

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B

20 Ω and 5 Ω

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C

15 Ω and 5 Ω

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D

20 Ω and 5 Ω

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E

15 Ω and 10 Ω

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Solution

The correct option is B

20 Ω and 5 Ω



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