Six similar bulbs are connected as shown in the figure with a DC source of emf E, and zero internal resistance. The ratio of power consumption by the bulbs when (i) all are glowing and (ii) in the situation when two from section A and one from section B are glowing, will be:

Text Solution
Verified by ExpertsThe correct answer is:
B
(i)


(P eq ) 1 = (i/3) 2 × 3R + (i/3) 2 × 3R =
i 2 R
(ii)

P eq)2 = (i/2) 2 × R + (i/2) 2 + i 2 R =
i 2 R
=
= 
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
A galvanometer having a coil resistance of 60 Ω Ω shows full scale deflection when a current of 1.0…
A student measures the terminal potential difference (V) of a cell (of emf ε and internal resistanc…
See the electrical circuit shown in this figure. Which of the following equations is a correct equa…
A thermocouple of negligible resistance produces an e.m.f. of 40 µV/°C in the linear range of tempe…
In the circuit shown in the figure, if potential at point A is taken to be zero the potential at po…
A milli voltmeter of 25 milli volt range is to be converted into an ammeter of 25 ampere range. The…