An electric jug is connected to a 240V electricity supply and draws a current of 3.3A. How long will it take to transfer 3.2x10^4 J of energy to its contents?
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(240 x 3.3) = 792 Watts.
1 Watt = 1 Joule/ sec.
3.2 x 10^4 = 32,000 Joules.
(32,000/792) = 40.4 secs.
1 Watt = 1 Joule/ sec.
3.2 x 10^4 = 32,000 Joules.
(32,000/792) = 40.4 secs.