Questions
A 5 watt, 10 volt bulb is connected to a cell of emf 10 volt and internal resistance . Then power consumed by the bulb is
detailed solution
Correct option is C
R = resistance of bulb =1025Ω=20ΩCurrent through the bulb, i=1020+5A=25A∴ Power consumed by the bulb, P=252×20W=3.2 WTalk to our academic expert!
Similar Questions
Two 1000 W heaters when connected in parallel across 220 V supply produce heat Hp in time t. If they are connected in series across the same power supply, the heat produced in the same time is HS. What is (HP / HS) ?
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