Answer in Brief
1) When two resistors are connected in series, their effective resistance is 80 Q2. When they are connected in parallel, their effective resistance is 20 2. What are the values of the two resistances?
Answers
Answered by
0
Answer:
When two resistors are connected in series their effective resistance is 80 when they?
when two resistors are connected in series the effective resistance is 80 ohm when they are connected in parallel the effective resistance is 20 ohms .
Answered by
1
Answer:
Let the two resistances be R
1
and R
2
.
Series connection R
s
=R
1
+R
2
Or 80=R
1
+R
2
⟹ R
1
=80−R
2
Parallel connection :
R
p
=
R
1
+R
2
R
1
R
2
Or 20=
80
R
1
(80−R
1
)
Or R
1
2
+80R
1
−1600=0
⟹ R
1
=40Ω
So, R
2
=80−40=40 Ω
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