Answers

2016-04-10T14:37:55+05:30
For the heater,

Current, I = 5 A
Resistance, R = 100 Ω
Time, t = 2 h = 7200 s 

Work, W = I² R t
∴ W = 5² * 100 * 7200
        = 25 * 100 * 7200
        = 1,80,00,000 J

Thus, Energy consumed is 1,80,00,000 Joules. (Work done is converted into energy)
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