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If an 8/9ohm, 4/3ohm and 2/3ohm resistor is connected in star, find its delta equivalent.(a) 4ohm, 3ohm, 2ohm(b) 1ohm, 3ohm, 2ohm(c) 4ohm, 1ohm, 2ohm(d) 4ohm, 3ohm, 1ohm

Answer» The correct option is (a) 4ohm, 3ohm, 2ohm

To elaborate: Using the formula for the star to delta conversion:

R1=8/9+4/3+(8/9)*(4/3)/(2/3)

R2=8/9+2/3+(8/9)*(2/3)/(4/3)

R3=2/3+4/3+(2/3)*(4/3)/(8/9).


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