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Question

Three resistors R1= 1 Ω , R2 = 100 Ω , R3 = 1000 Ω are connected in parallel. Which relation holds true?

A
Req. < 1
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B
1 > Req> 100
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C
Req = 100
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D
1 > Req > 1000
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Solution

The correct option is A Req. < 1

1Req. = 1R1 + 1R2 +1R3
1/Req.= 11 + 1100 +11000
1/ Req = 1 + 0.01 + 0.0001
1/ Req = 1.0101
Req = 1/ 1.0101
Req. < 1 ( 0.98 )
Req. < 1


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