78. Sleep Modes Power Management

Question.4

The power consumption characteristics are

Active Mode Current: 20mA
Sleep Mode Current: 0.1mA

Which of the following triplets (Sleep Time X, Active Time Y, Battery Capacity Z) will ensure the system runs for at least 1 year before the battery is dead?

(X = 10 sec, Y = 2 sec, Z = 5000 mAh)
(X = 60 sec, Y = 5 sec, Z = 3000 mAh)
(X = 180 sec, Y = 3 sec, Z = 4000 mAh)
(X = 300 sec, Y = 5 sec, Z = 1000 mAh)

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