Question

A lamp is plugged into a standard 120-volt outlet. If the lamp draws a current of 0.5-amps, how much energy is consumed in 1 minute?

Answer 1

One handy formula for electrical power ... the one that's
most helpful here ... is:

Power = (voltage) x (current).

so Power = (120 volts) x (0.5 ampere) = 60 watts.

Now 60 watts means 60 joules of energy per second.
In one minute, the lamp dissipates

(60 joules/second) x (60 seconds/minute) = 3600 joules/minute.