Work, Power and EnergyEasy
Question
A heater is designed to operate with a power of 1000W in a 100V line. It is connected in combination with a resistance of 10Ω and a resistance R, to a 75V mains as shown in figure what will be the value of R so that the heater operates with a power 62.5W ?
Options
A.5Ω
B.10Ω
C.2.5Ω
D.15Ω
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