Question

In: Physics

Standby power (sometimes called vampire power) is the power used by a device that is off...

Standby power (sometimes called vampire power) is the power used by a device that is off but plugged in and in a standby mode. Regulations typically limit this power to 1 Watt. If electricity costs $0.10 per kilowatt-hour, then to the nearest order of magnitude, and assuming 1 Watt, how much does it cost to leave a device in standby mode for one year?

(A) $0.01

(B) $0.10

(C) $1.00

(D) $10.00

(E) $100.00

Expert Solution

Time,

Power,

So, energy dissipated in 1 year,

Electricity cost is per kilowatt-hour.

So, total electricity cost in one year

So, option C) is correct.

genius_generous answered 2 years ago

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