Find R2 when RT= 6ohms?
RT=R1R2/R1+R2
Find R2 when RT = 6ohms.
What happens to RT when R2= infinity?
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RT=R1R2/R1+R2
Find R2 when RT = 6ohms.
What happens to RT when R2= infinity?
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Verified answer
The equation
RT = R1 R2/R1 + R2
was probably supposed to be
RT = R1 R2 / (R1 + R2),
the usual expression for a parallel circuit --
which has a COMPLETELY different meaning
from what you wrote.
You must learn elementary algebra!
Anyway, if RT = 6 ohms, then
R2 = (6 ohms)R1 / (R1 - 6 ohms);
possibly R1 was GIVEN in your book
or in an illustration?
If not, this is as far as you can go.
When R2 = infinity, the RT will equal R1.