Question

we have three resistor containing 30 ohm each to get a resistent of 20 ohm we should connect them.
a. parallel
b. series
c. two in parallel and third in parallel with combination
d. two in series and third in parallel with combination​

Answer 1

Answer:

series because there are in series

Answer 2

Answer:

Answer is 'D'

Explanation:

for getting 20 ohms connect two resistance in series so effective resistance is 30+30=60 and this 60 ohms resistance connect in parallel with 30 ohms so final effective resistance is (30*60)/(30+60) =20.