Editor
In which of the following more heat energy is produced?
Difficulty: Easy
A: 
A bulb of resistance $5\times10^{-3}$ ohm operated for 1 min by suppling a current of 120 A
B: 
An iron producing heat energy of 2 kJ
C: 
A tube working for 2 mins with a supply of 50 A current and offering a resistance o f 0.02 ohms
D: 
Both A and C produce same energy.
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