Questions
Two bulbs 25W, 100V (upper bulb in figure) and 100W, 200V (lower bulb in figure) are connected in the circuit as shown in figure. Choose the correct answer
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a
Heat lost per second in the circuit will be 80J
b
Ratio of heat produced per second in bulbs will be 1: 1
c
Ratio of heat produced in branch AB to branch CD will be 1:2
d
Current drawn from the cell is 0.2 A
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Correct option is A
Total resistance =5003+100+100225600+2002100100+100225+600+2002100=500 ohmRequired heat =2002500=80JSimilar Questions
A 200 W and a 100 W bulb, both meant for operation at 220 V are connected to a 220 V supply.
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