A flashlight battery has a lifetime of 5 hours and it is rated for 0.6 ampere-hours.

(a) What is the current that can be delivered by the battery?
(b) How much power can be delivered if the terminal voltage is 8 V?
(c) How much energy is stored in the battery?

Question

A flashlight battery has a lifetime of 5 hours and it is rated for 0.6 ampere-hours.

(a) What is the current that can be delivered by the battery?
(b) How much power can be delivered if the terminal voltage is 8 V?
(c) How much energy is stored in the battery?

anonymous · Answer

0.6 amps/hr x 5 hrs = 3 amps

P=IE 
P=3 x 8 = 24W

24 watt = 32.539 joules

I think that is right, I'm a little rusty with power and energy.

anonymous · Answer

Sorry, that should be 86.4 kJ