Question

Determine the amount of electrical energy (in J) used by the following devices when operated for the

indicated times.
c. X-Box video game player (180 W) - operated for 2 hours
d. 42-inch LCD television (210 W) - operated for 3 hours

Answer 1

Find answers below.

Step-by-step explanation:

Given the following data;

c. Power = 180 Watts

Time = 2 hours = 60*60*2 = 7200 seconds

To find the energy used;

Energy = power * time

Energy = 180 * 7200

Energy = 1296000 Joules

d. Power = 210 Watts

Time = 3 hours = 60*60*3 =

Energy = 210 * 10800

Energy = 2268000 Joules