An electric toaster is rated 1200 watts at 120 volts. what is the total electrical energy used to operate the toaster for 30 seconds

P = power rating of the electrical toaster = 1200 watts

t = time of operation = 30 sec

E = total electrical energy

Total electrical energy is given as

E = P t

inserting the above values

E = 1200 x 30

E = 36000 J

1200 W, 30 seconds

energy is in Joules

Joules = Watts x seconds

1200 x 30 = 3600 J