Asked by carolyn

Alkaline batteries have the advantage of putting out constant voltage until very nearly the end of their life. How long will an alkaline battery rated at 1 A ⋅ h and 1.58 V keep a 1 W flashlight bulb burning?
Answered by Henry
P = E*I = 1.0 W.
1.58I = 1.0
I = 0.633A.

A*h = 1.
0.633*h = 1.
h = 1.58 Hours.
Answered by MArkus
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