Electronics - Parallel Circuits - Discussion
Discussion Forum : Parallel Circuits - General Questions (Q.No. 20)
20.
What are the individual values of two parallel resistors whose RT is 8 ohms, when one has double the resistance of the other?
Discussion:
15 comments Page 2 of 2.
Chinnu said:
1 decade ago
Gn:Rt=8
also r1||r2;nd r1=2r2 =>r1/2=r2
=>(r1*r1/2)/(r1+r1/2)=8
=>r1=24
r2=r1/2 =>r2=12
also r1||r2;nd r1=2r2 =>r1/2=r2
=>(r1*r1/2)/(r1+r1/2)=8
=>r1=24
r2=r1/2 =>r2=12
Niki said:
1 decade ago
I agree with mamatha
Mamatha said:
1 decade ago
Let R1 be x, so R2 is 2x
8=(x*2x)/(x+2x)
So x is 12
Hence R1 is 12 and R2 is 24
8=(x*2x)/(x+2x)
So x is 12
Hence R1 is 12 and R2 is 24
Karthik said:
1 decade ago
I am Not agree that
Correct answer is
if R1,R2-16Ohms so that only RT =8Ohms
So Given option is wrong
Pls clarify...
Correct answer is
if R1,R2-16Ohms so that only RT =8Ohms
So Given option is wrong
Pls clarify...
Jessi said:
1 decade ago
Effective Resistance=8
therefore R1||R2=12||24=8ohms
so D is the right option
therefore R1||R2=12||24=8ohms
so D is the right option
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