Questions
Assuming all bulbs are identical, rank the brightnesses of the bulbs, from brightest to dimmest.
detailed solution
Correct option is A
For the branch containing A, B and C.Req =3R2Current in A : I1=EReq = 2E3RCurrent in each of B and C = I'1=I12 = E3RFor the branch containing D, E, F, G and H:Req =7R3Current through D and H: I2=3E7RCurrent through each of E, F and G:I'1=I23 = E7R Since I1 > I2 > I'1 > I'A > D = H > B = C > E = F = GTalk to our academic expert!
Similar Questions
A resistor R is connected across a battery of emf 12 V. It observed that terminal potential differenceis 9 V and the power delivered to resistor is 18 W. Internal resistance of the battery ‘r’ and the resistance R are respectively
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