Four 15-Volt AA Batteries in Series Power a Transistor Radio

question 6

Multiple Choice

Four 1.5-volt AA batteries in series power a transistor radio.If the batteries hold a total charge of 440 C,how long will they last if the radio has a resistance of 200 Ω?

• A) 4.1 h
• B) 2.2 h
• C) 1.1 h
• D) 13 h

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