Question

if 2 resistors connected in series the effective resistance is 2.5ohm if the same 2 resistance are connects parallel the effective resistance is 0.6ohm. find the individual resistance
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Answer 1

Answer:

in series it will be 1.25+1.25

Answer 2

Answer:

Answer is 1.25 for individual resistor.

Let the resistors be R1 and R2

Cinditions:-

R1+R2=2.5ohm........ (i)

1/R1+1/R2=0.6ohm

(R1+R2)/R1×R2=0.6

2.5/R1×R2=0.6[from (i)]

R1×R2 =2.5×0.6=1.5

Now we have to assume such numbers whose sum is 2.5 and product is nearly 0.6

Take 1.25 and 1.25,see it's done.