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An electric bulb is marked 100W, 230V. If the supply voltage drops to 115V, what is the heat and light energy produced by the bulb in 20min? Calculate

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An electric bulb is marked 100W, 230V. If the supply voltage drops to 115V, what is the heat and light energy produced by the bulb in 20min? Calculate the current flowing through it.
A. 10 kJ
B. 15 kJ
C. 20 kJ
D. 30 kJ
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Correct Answer - D
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