Question

what is
the
effective resistence
when two resistor 10 ohm and 20 ohm
are connected ire partalled combination!​

Answer 1

Explanation:

for parallel combination

1/Req = 1/R1 + 1/R2

1/Req = 1/10 + 1/20

1/Req = ( 2 + 1 ) / 20

Req = 20 / 3 = 6.66 ohm