When a number of resistance are connected in _______, their combined resistance is less than the smallest individual resistance.

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RRB ALP CBT I 31 Aug 2018 Shift 2 Official Paper
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  1. horizontal
  2. box
  3. series
  4. parallel

Answer (Detailed Solution Below)

Option 4 : parallel
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Detailed Solution

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The correct answer is parallel.

Key Points

Concept:

Addition in Series  = R1 + R2 + R3.

Addition in Parallel  .

Calculation:

Let 4 resistances are connected in parallel.

R1 = 2 , R= 4  , R= 5  ,R= 20 .

For R1||R2

 = 

For R2||R3

 = 4 ,

Req1 ||Req2

 = 1 .

Hence

which is less than the smallest resistance of the circuit that it

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