Electrical Engineering - Parallel Circuits - Discussion

Discussion Forum : Parallel Circuits - General Questions (Q.No. 2)
2.
The total resistance of a parallel circuit is 50 . If the total current is 120 mA, the current through the 270 resistor that makes up part of the parallel circuit is approximately
22 mA
120 mA
220 mA
50 mA
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
16 comments Page 2 of 2.

Parampal sehgal said:   1 decade ago
120 ma * 50/270 = 22ma
(1)

Ramesh said:   1 decade ago
Total Resistance=50
R1 and R2 are in parallel.
(1/R1)+(1/R2)=(1/50)
R1=270 ohms (given)
R2=61.36
R2=R1/(m-1)
where m=(Total Current/Current through 270 ohms)
Using above formula find out the current through 270 ohms...

Dilip said:   1 decade ago
Can be explain anybody ?

Mohana.. said:   1 decade ago
Acc to CDR, current = (particular resistance * total current)/total resistance..

Deva said:   1 decade ago
Thanks raja.

Raja said:   1 decade ago
According to current div rule.

Current= (total current*total resistance) /particular resistance.


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