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1.(a) Draw a digram to show two resistors R1 and R2 connected in series? (b) When two resistors are joined in series,the equivalent resistance is 90 ohm. When the same resistor are joined in parallel,the equivalent resistance is 20 ohm.Calculate the resistances of two resistors.

1.(a) Draw a digram to show two resistors R1 and R2 connected in series?
(b) When two resistors are joined in series,the equivalent resistance is 90 ohm. When the same resistor are joined in parallel,the equivalent resistance is 20 ohm.Calculate the resistances of two resistors.

Grade:12

1 Answers

Apoorva Arora IIT Roorkee
askIITians Faculty 181 Points
9 years ago
From the question, it is clear that
R_{1}+R_{2}=90
and
1/R_{1}+1/R_{2}=1/20
Solving the two equations, we get
R_{1}=30 \OmegaandR_{2}=60 \Omega.
Thanks and Regards
Apoorva Arora
IIT Roorkee
askIITians Faculty

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