When two resistances R1 and R2 are connected in series, they consume 12W power. When they
are connected in parallel, they consume 50 W power. What is the ratio of the powers of R1 and R2?
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resistance in series =R1+R2
effective resistance is 12/I².......(1)
when they are in parall
effective resistance is 1/R1 +1/R2
so, effective resistance is R/2
now take the power ,P is 50/I²*2 .......(2)
now you can easily solve the matter by yourself.
Answer is 12:50 or 6:25.
is that right???????
effective resistance is 12/I².......(1)
when they are in parall
effective resistance is 1/R1 +1/R2
so, effective resistance is R/2
now take the power ,P is 50/I²*2 .......(2)
now you can easily solve the matter by yourself.
Answer is 12:50 or 6:25.
is that right???????
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