Question

2.1W iPod is used for 30 minutes. How much energy does it use

Answer 1

Answer:

The energy is 3780 joule

Step-by-step explanation:

we are given

Total power is 2.1 watt

so,

P=2.1 W

total time is 30 minutes

now, we can change in seconds

we know that

1 min =60 seconds

so, we get

$T=30\times 60sec=1800sec$

we know that

Energy = power*time

$E=P\times T$

we can plug value

$E=2.1\times 1800$

$E=3780$

So,

The energy is 3780 joule