Question

Three resistances each of 20 ohm , 30 ohm and
50 ohm are connected in delta. Calculate
corresponding resistance in equivalent star connection ​

Answer 1

Answer:

QUESTION:

Three resistances each of 20 ohm , 30 ohm and

50 ohm are connected in delta. Calculate

corresponding resistance in equivalent star connection

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ANSWER:

Answer. Minimum resistance is obtained by connecting all three resistances in parallel => 1/R =1/4+1/6+1/8 =>1/R = 6/24+4/24+3/24 => 1/R = 13/24 => R =24/13 ohm .

so,R=2 ohm. THERE IS ONE MORE METHOD TO FIND THE equivalent RESISTANCE IN PARALLEL, BUT THIS FORMULA WILL BE USED WHEN THERE WILL BE ONLY 2 RESISTANCES IN PARALLEL COMBINATION. =2 OHM.

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