When a dry-cell fl ashlight battery with an internal
Chapter , Problem 78(choose chapter or problem)
When a dry-cell fl ashlight battery with an internal resistance of 0.33 V is connected to a 1.50-V light bulb, the bulb shines dimly. However, when a lead-acid wet-cell battery with an internal resistance of 0.050 V is connected, the bulb is noticeably brighter. Both batteries have the same emf. Find the ratio Pwet/Pdry of the power delivered to the bulb by the wet-cell battery to the power delivered by the dry-cell battery.
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