Which of the following statements are true? Check all that apply. A battery does
ID: 1439596 • Letter: W
Question
Which of the following statements are true? Check all that apply. A battery does work on electric charges to bring them to a position of higher electric potential energy so that they can flow through a circuit to a lower potential energy. 0 A battery is a device that produces electricity by transforming chemical energy into electrical energy. The internal resistance of a battery decreases with decreasing temperature. The potential difference between the terminals of a battery, when no current flows to an external circuit, is referred to as the terminal voltage.Explanation / Answer
(a) There is potential difference between the terminals of battery and the emf of battery does work. Hence the statement is true.
(b) A battery is a device that is able to store electrical energy in the form of chemical energy and convert that energy into electricity when connected to a circuit. Hence second statement is true.
(c) As chemical reactions slow down on decreasing the temperature which indirectly means that the internal resistance increases. Hence statement third is false.
(d) Electromotive force of battery is the potential differnce between terminals of battery when no current flows thorugh it. Hence fourth statement is false.
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