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 1) all are glowing and 2 ) in the situation when two from section A and one from section B are glowing will be : Option 1)4: 9 Option 2)9 : 4 Option 3)1 : 2 Option 4)2 : 1

$R_{eq } = 2 R/3 \\\\ P_1 = 3 E^2 /2 R$

$R_{eq } = 3R/2 \\\\ P_2 = 2 E^2 /3 R \\\\ P_/ P_2 = 9/4$

Option 1)

4: 9

Option 2)

9 : 4

Option 3)

1 : 2

Option 4)

2 : 1

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